hi truther sounds like you got this off to a tee mate.i would like to ask you about your catty as i,m just getting back into it.i.m gonna be ueing the old milbro frame and i,m a bit old fashioned and like my square elastics maybe because thats all i have ever used.i,v found that the 6mm and 5.5mm is a bit too much so i,v plumped for a 4.5mm elastic which i think will do the job ok.what size square do you use and what size tubes ??.
cheers Richard