I'm happy on my Brooks B67/68s saddles--but all my saddles are short because they are all hand-me-downs from the tandem.

I've been reading lately about greater control gained by greater length and it has gotten me thinking--because greater control would be...well, great!!

How much more length do I need to add?

B 67/68 normal are 260mm long (compared to 235 for the Short)
B72 is 210 wide and 260 long while the B18Flowery is 210 wide and 250 long that I have on my commuter.

I'm wondering about a saddle for my Surly which is slightly more agressive (funny to say "agressive" about me and my riding) but anyway, would moving from 235 length to 260 would make a difference in control?

The fwd/back position seems to be ok.

I get confused and think maybe I if I got a gigantic B190 (W250 x L323) I would never ever again wonder if my saddle were big enough!