Disclaimer: Still New At The Game
I'm still most comfortable with the 5/8, but I can totally see how the 6/8 has a nicer heft. It shouldn't take me too long to get used to that more. Maybe that's really it. As one gets more used to handling a straight razor, the more they're able to maneuvre the larger blades with greater ease.
My 3/8 is tricky on the strop I'll admit, but considering how little I've shaved since xmas day, it's my current favorite.
My arsenal consists of...
5 5/8s and 1 6/8 (5/8 - Dovo Special; TI "Evide Sonnant Extra"; Hen & Rooster; Weltmeister (grandad's); Unknown (grandad's) and 6/8 - SRP TI)
I find the 5/8s are a bit more user friendly. Although, I can't discard the fact that my SRP TI 6/8 does give a great shave.
Still looking for the one that will finish off my weekly rotation. Any suggestions??
Jeff