Straight is always easier. Reflex and especially R/D bows can really fool you in the early stages of tillering, in weight and tiller.
Look at this first push on the floor for a R/D bow:
The deflex at the handle really fools the eye. It seems hinged there. Plus early draw weight is really up there compared to a straight design. It's much easier to come in under weight.
Straight reflex makes floor tillering much more difficult simply because of limb twist. I always feel like I need to take a bunch of weight off of reflexed bows when it's not necessarily so.