my M2000 cougar had fury cams with 16" limbs and it had a 65/8" BH. Furious cam is bout the same as Fury just that it is adjustable. So if you had Elite limbs which are 1" longer then factoring in the angle of say bout 35 degrees shoulg give you a BH of bout 7". All this depends on the cam you use of course. Just a note: the web sight is just avg. specs not neccisarily spot on accurate. Just as a for instance BH for the Slayer says bout 63/4". Real world specs are bout 7" for C cams and 6.25" for A cams.
Believe me I have been tinkering with Martin bows since before 2003 and have been a Staff shooter since then. I don't claim to know every thing but what I know I know. Thanks,