no, the american brace system is not allowed.
Get yourself to your nearest FT club, if your not already in one and have a look at how the top shots shot, or check out the Gp photos in the photos forum /Gp reports on here.
Once you have the correct position, you should be able to hold fairly steady on any mag from 25 -50.
i too shoot fixed 35, Just seems easier than faffing with turning mags up and down etc.
BFTA Grading Q's to; email@example.com
sorry wont answer Bfta q's on forums, Cant keep track of replies etc!
BFTA updates on http://www.thebfta.net/forum/
REV26 Ostler Ev2 & x45 comp awaiting a Gary Cane Stock!
Beast Priest Ostler
Ev2 & x45 prem ret comp in Warren Edwards stock
If you want the best, Ostler is the man
Pump your Fish, Little or Large
MFTA visitors World championship - Arms dealer 97, Awesime 94, Acid Hands 85