I've got the Mongoose with the NCS and the strap can adjust exactly to where you want your trigger finger to touch the trigger of the release.
This can be done by loosening the two tiny allen screws which tightens the plate that the straps passes thru, then you can either shorten of lengthen the strap to your comfort point.
Pretty simple, just use some blue Loctite on the screws when you are done the adjustment.