DC, normally you glue laminates parallel and also parallel to the grain - when you glue the belly lam up the riser block the glue joint runs up, across the grain. this gluejoint is weaker than same with parallel grain. ...and there is a lot of stress there. imho.
R/D design just works fine on wood as a material i think. I do shoot by hand, but only draw 26" as I dont get consistency on 28". The machine in our clubhouse still/again is under construction
Can't find anymore this fdc but have one from a similar bow (same caul) might also post the bow