The LX only goes to a 30" draw !! At that draw you can get a 80 % which is adjustable.......but going to 65% by changing the set screw you lose .5" of draw(backing you down to 29.5") OR you can order it with a 30" 65% let off cam(which is not adjustable and only 65%) !!

Also Mathews does not offer adjustable cams mainly because peak performance is affected by adjustments ( backing a 30" down to 28" would not perform as well as a cam designed specifically for 28" draw) !

And Mathews does have a slightly adjustable cam that is quickly being phased out . The original Max cam is adjustable within an inch . It has 3 settings which increase/decrease draw length by a half inch per adjustment. All the straightline cams are draw length specific !

I hope that helps !!