I don't know about the PRO 40 for sure,but our Bowtech dealer got a new PRO 38 in lastweek.This bow has a 29" draw length,set at 70# draw weight,single cam,and was shooting a I.B.O. arrow over 330 fps.I havn't had any experience with the PRO 40,but I have a 2002 model PRO 38,I'm getting 285 fps with a 425 grain arrow and 29"draw length,including a string loop,peep sight,cat whiskers and a kisser button on the string.And YES you can get the PRO 40 in a single cam,double cam,or a NEW wheel bow.Good luck.