I'm with you Idiens, roller furling is my prefered thing too, don't like going to the bow.
But the funny thing is, as you roll up the center of effort gets higher and higher, and the sail gets baggier and baggier both of which increase the heeling moment you are trying to reduce, so it's less than ideal, can you at least admit that Idiens?
Ditch the roller furler, hank on a working jib, and it's gonna be better in conditions that need a jib. Unfortunately your increased boat speed may be used to move the boat further away from where you just fell off the bow after hanking on that jib. :P
It's all about trade offs, noone is saying roller furling is better for sail shape SD. Noone is saying roller furling isn't convenient and maybe safer Idiens.
Now I'm certain some of the big boys will comment how their super high tech racing furler has the best of both worlds and prove me wrong. Gui..?
I think to answer your question Idiens, figure out local conditions and put up the one that will operate best in that range. In the PNW for my boat that would probably mean putting on the 130 for the fall and winter season, then switching to the 150 for summer's lighter air. Heck, I might get a jib for the winter then just wait till I see whitecaps to go out.