Everybody has their favorites and so of course some prefer this or that size or grind over the other however as I've said many times if you think you need a specific grind to shave a specific beard type you are wrong, wrong, wrong.

My old example is back in the day when barbers routinely shaved people and were competent if you looked at the typical Barber's arsenal of razors you would see full hollows and either 5/8s or 6/8s. Some real old timers who learned on wedges might use those but they were the exceptions. The fact is if a barber could shave every guy who came into his shop with those razors and give him a BBS, comfortable shave, well that's impossible according to the match your razor to beard crowd.

So, to me if you have difficulty with the shave check your razor and/or your technique.