I'm feeling spicy today pat... lol
So let's test that theory out to the extreme...let's take two bows with the same draw weight and draw length,and both maintain a straight side profile,and both have properly sound arrows to match...let's make the first bow 44" long,2" wide at the handle and the width runs parallel full width to the tips,jack up the tiller with a subtle hinge or two,and one that has one limb way stiffer than the other causing an unbalance when drawn....now let's make the second bow a perfectly masterly crafted 76" longbow with a center cut shelf
...now let's take the 44" bow and practice practice practice...now either your gonna lose your teeth either to the hand shock,or from old age cus it took ya 50+ years to master shooting it...lol...now let's test the two together at twenty plus yard shots with minimal practice with the 76" bow....which bow are you gonna prefer to shoot and why,and which is gonna be a better shooting bow?
I went thru a short bow phase and learned n spent lots of time becoming a decent enough shot with them,but even after all that and a well made bow I can still shoot a longer bow better,and even if were only shooting them ten yards away...to me and imho there is enough of a difference in shooting accuracy due to design and tiller alone,and it can affect it enough to the point to give it serious consideration when making bows..and especially when hitting the mark is the whole point when shooting any type archery...so why not do all you can to help your self and give your self the best case scenario to make the shot...
My example is a lopsided extreme example,but I have seen folks make bows close to that,and its just to clearly show there is enough of a difference to give design and tiller consideration when making and shooting a bow IMHO....