You can put some angle on yer fletch an possibly even helical since the Blazers are so short. The thing to watch is that ya don't put so much angle or helical on that it drags in yer rail slot. Not all bows can shoot Blazers cause of their height, they can't lay right in a shallow track, an tend to lift.
I would avoid feathers, they're fine for verts (my opinion) but vanes are superior for crossbows.

 

You can also straight fletch QuikSpin style fletching. Again, check for vane height clearance.

Some have shaved about a 1/32 - 1/16 off the cock vane to achieve clearance without any noticeable issues.

Good luck.

 

Feathers, helical, blazers, NO. You have one vane riding in the rail, you don't want contact.

 

My Victory Xbolts have a slight helical vanes. I prefer straight but these work well so I will keep using them.