B50 & FastFlight tuning issues???

[redshedbowhunter]

Today I tried to tune a new FF string.  No matter what I did with brace height and tip weight I could not stop tail high and nock left with the FF (went through all the tip weights).  Once I put my old string (B50 back on I had perfect flight.

I shoot 400 Beman and draw to 31" with a 125gr tip.

Do any of you have any thoughts as to why I can get the other string arrow combo to tune with the B50 string and not the FF string?

[**DONOTDELETE**]

Pad your strike plate out with the FF or lighten your tip weight. You are probably gaining 15 fps.

Rubber bands vs cable in difference there...

[redshedbowhunter]

wow.  With the other string (b50) I get 179 with a 525gr arrow.