I've been wondering, is there any real difference noticed between different sizes of blades and different hollows other than personal preference? I currently have a 5/8 fully hollowed blade and enjoy it, but am interested in trying out different blades.

I've heard and read that as you go to less of a hollow (more towards wedge), it can be easier to tackle heavier beards and the edges will last longer, but is more difficult to hone. is there any truth to that?

Does the size really matter other than personal preference? I can't really find anything (old wives tale or not) that really says there's distinct difference between a 5/8 and a 8/8 other than design features.