Originally Posted by Sandy Webster
the flex values have changed a bit since the RL1. mainly due to shell wall thicknesses and the lower side saddle cutouts on the RL1 compared to the newer moulds.
Zi/Zc was a classic late '90 stiffer cuff ( Zi ) over soft lower- theory being the upper "drove" the lower and provided a good even feel. Zi is prbably about a 190-200 flex and has been replaced by E which is half way between C and i. still quite stiff at about 170-180.
size is the next think to consider as the wall thicknesses of both the clog and the cuff increase with size. i.e.- a 130lb female may indicate a Zb in a 24.0shell, but if like me a 180 male also 24.0shell uses a Zb it feels way too soft ( I use a a 170 flex ) but if I were in a size 26.0 I would be perfect in a Zb with the thicker boot shell walls. the actual plastic mix is the same for all boot sizes.
interestingly - Tecnica uses 3 different plastic blends in it junior pro 70 and 90 in an effort to minimuze the shell thickness effect.
so- a great fit in a 100-120 flex boot should be fine for a relaxed high performance application.
Thanks for the good info, Sandy.
I'm getting a bit tired of the 'struggle' getting in and out of my RL1's (heaven help me if I ever get a leg injury and they have to remove them at the hospital) so I'm going to move down a bit in performance and stiffness. I see a lot of the current crop of racers at Nakiska in Atomics, so I'm picking up a pair of Atomic RT TI 130's to give them a whirl. Still a high-end plug boot but a lot softer than my RL1's and easier to deal with as far as entry and exit (nothing's a bigger P.I.T.A. than being trapped in my boots for 30 mins waiting for them to warm up, or heating them with a blow dryer, just to be able to get them off).
Where do you do boot fitting, by the way?