My MAMBA M6 arrived on Tuesday. It was getting late and I was very curious as to what speed it would shoot a 500gr arrow. I threw a rest and d loop on it really quick (no peep) Grabbed one of my FMJs and shot it over the chrono 299! 298 299. I was impressed to say the least.
Next day paper tuned it, added a peep (3/16 g5), and went to shooting, sighted in for 30 and noticed that my serving above my Dloop was fraying slightly. Matched up perfectly with the roller guard, however I moved the string stop out about 3/16 to where it was just touching the string and it seemed to fix the slight issue.
Well time to make a sight tape ... so back to my chrono same arrow, same everything except an added peep sight...281-282-283-283 !!!! How in the world did a peep take 17-18fps?? I take the peep out and try again 283-284-284. Something was not adding up.
At rest the cables lined up with the marks on the cams but to check them at full draw I put it on my draw board to be sure the cams are timed. The bottom cam was very slow. Twisted up the cable and got them timed at full draw. Axle to axle was 32 1/4 and brace was 6 1/8. Quite pleased with myself back to the chrono.. 283 283 283.
Its 29/70 (actually 72.34)
Anyone else have this problem? How does a bow lose almost 20fps after 100 shots or so? After reading the limited information online the conclusion was the scorpion strings are problematic. Ordered a new set of Vapor Trails last night ($100 OUCH!) Looking forward to seeing if they get my speed back.