Cajun, the string groove is factory standard.
But you do make a good point about the release. You push with the bow hand, pull with the string hand and, when it' s time to shoot, you simply quit holding the string. You do not turn loose. You do not release. You do not flip your fingers open. You do not DO anything. You' re already holding the string and you simply quit holding it. Easy as pie.
Yeah, right. Don' t we all wish?