IMHO they offer a better chance for a blood trail than a non-bevel 2 blade. Because they make an S cut not a slit. I have had many poor blood trails with 2 blades to the point I won't use them unless I have to. That said I think the SB is just a slight step up from that.

I have plenty of energy for a 3 or 4 blade so I get more cutting surface and a hole rather than a slit. Before the 2 blade lovers jump me (lol) there is a lot to a blood trail and I admit that more than most but I also have had the hide shift and close the lower hole and guts block the lower hole and being smaller it's just more likely.....and again less overall cutting diameter........so I don't think they are the best option unless you really need that extra penetration.

The folks shooting 450 grain+ arrows @ 300 FPS with 15 - 20 % FOC I really think are doing themselves a disservice but not matching a better BH to their rigs.

 

IMHO they offer a better chance for a blood trail than a non-bevel 2 blade. Because they make an S cut not a slit. I have had many poor blood trails with 2 blades to the point I won't use them unless I have to. That said I think the SB is just a slight step up from that.

I have plenty of energy for a 3 or 4 blade so I get more cutting surface and a hole rather than a slit. Before the 2 blade lovers jump me (lol) there is a lot to a blood trail and I admit that more than most but I also have had the hide shift and close the lower hole and guts block the lower hole and being smaller it's just more likely.....and again less overall cutting diameter........so I don't think they are the best option unless you really need that extra penetration.

The folks shooting 450 grain+ arrows @ 300 FPS with 15 - 20 % FOC I really think are doing themselves a disservice but not matching a better BH to their rigs.

I have had the same experience with two blade heads, shooting from treestands the slit was closed up by guts. I would find the deer but no real blood trail. I usually carry one two blade in my quiver for a back up shot at less than ideal shot angle hoping for better penetration. I use Magnus Stingers with bleeders and Buzzcuts for both compound and my recurve.

 

I've very much enjoyed shooting Strickland Helix heads with the RH single bevels. Killed elk, black bears, whitetail and a lot of other stuff with them. Fly absolutely amazing and have killed everything I stuck with them. Not every single blood trail has been amazing, but everything I shot was recovered and that is all that matters to me. No track job was very long either, most animals died within 50 yards.

 

My impression is the advantages may be as follows when you have a really good Single bevel.

The bevel induces rotation with resistance on flesh as well as bone. The rotation tends to pull the flesh & vitals in to the broad head seemingly offering a larger cut diameter. When impacting heavy bone, the likelihood of breaching the bone tends to be higher.

Should you go with a high quality steel offering such as the S7 tool steel Cut throat Single bevel in a 200 grain offering, the potential to shatter heavy bone can be high. The shattered bone will create a large wound channel allowing the head to continue to penetrate to & through the vitals.

 

I only shot one deer last year and used the single bevel as the kill shot. Buck was down but not out. From practice I can tell that they turn within the foam target. Mine turn right so I have to rotate shaft counter clockwise to pull it out. Don't think they will be in my quiver this year.
Ches.

 

I’ve killed 30-40 using the vpa and cut throats, mostly in the 250 grain. Bloods trials are either stellar or meh at best. I know it’s hit dependent but almost all of those deer have died in sight so didn’t even need a blood trail. Most shot with the stick but a few with the compound.

Everything I’ve shot with them has died incredibly fast and they act they ain’t even hit. I haven’t shot a vpa 2 blade in years once I switched to a single. My main head is the vpa 3 blade in 250 because I’m a firm believer a 3 blade will always leave a better blood trail then a single. Even with the longbow it’s my go to head but I still shoot the single bevels as well.

 

I have looked at the three blade VPA for my recurve but am reluctant due to the lower poundage of 40#.

 

Single bevels have one advantage for compound bows over double bevels of the same design: spin rate.

Your fletching makes the arrow roll in the air, but your broadhead is at a zero angle and resists that roll. This creates extra drag and reduces the roll rate, so the stability offered by your arrow spinning is negatively affected by the angle of the broadhead.

Single bevels will want to spin a little bit, but usually not as much as your fletching. Single bevels spin up to a higher roll rate and do so faster compared to double bevels.

For a given shape of a broadhead, a single bevel should be more forgiving than a double bevel.

As for penetration and blood trails, if you have the energy to spare then a single bevel will pop things open more. If you don't, the difference is probably negligible.

 

I've used them. Worked great. I don't use them now but I would without hesitation if I got an itch to try something new.