Personally, I think thebigspendur is correct. It's all down to personal preference and ability. If you use a heavy wedge all the time, you'll have more confidence in that blade. A sudden switch to a 5/8ths full hollow will probably result in a poorer shave, but use it regularly and you'll get used to it and achieve the same results you had with the wedge.

We all, subconsciously, have our preferences. I think it also applies to pre shave routine, brushes, creams or soaps, stones and strops.

It's the massive variables that make this hobby (addiction?) so interesting. If we all reached a certain point and that was that, nowhere to go, nothing to learn, we'd get bored and it would just be shaving. It would just become a chore again and we'd all be just as sad as those poor, unfortunate souls that still use a crappy cartridge and canned goo.

We are truly blessed!!

All IMHO obviously!