What is the ideal height difference for 69?

[samlad]

haha just a few. I think torso's vary in lengths depending on race. It's why people of African origin tend to be better sprinters as they have shorter torsos comapred to the rest of their body and so have a better cetre of gravity for running while people of caucasian orgin have longer torso's and for this reason tend to be better swimmers.

69 isn't something I normally do as I 'd be too occupied with other things but I'd like to try it again on my next punt. I've been looking at the heights in the profiles and most are around 5'4 with a smaller proprtion closer to 6ft. I think 69 would be good with both but I would guess that one would be more comfortable than the other.

Haha! Thanks for the info, mate.

All joking aside, this is a particular favourite of mine and I do see where you're coming from.