I was only able to get a 175cm length in the E-Race non pro (as the US has very limited supply of these skis). Skied them at my home mountain today. I absolutely love them but they took a couple of runs to get used to. The skis feel like that have almost no sidecut from the middle to the tail. This is not actually the case but they have a race design and the tails absolutely release if you do not hold the arc firmly past the apex. And because they ski like they have limited sidecut in the tail, if you don't not pull back the feet, and engage the tips at the top of the he arc, the skis will not arc a tight turn.This is really the case on any ski, but just more noticeable on these. Having said that in my second run when I was getting the hang of how to ski them, I started to fall in love. Stated TR is 15.8 (I believe on the 175s) and they would bend nicely down to a 13.5-14m TR and I was arcing some really nice, super fun high G turns. The skis do however want to go fast (which makes sense as they are derived from a race design). I am not sure what the factory tune is but I hit mine with my Razor Tune and put a 2 degree edge on. Edge hold was excellent. Other than the wider TR and the fact that the tails want to release, these are not what I would call unforgiving skis. But I would also say its not the best ski for PMTS intermediates who are still working on nailing several essentials more regularly. For sure the 170s would be easier to ski, and easier to ski tighter arcs (with the tighter TR).
But for me, where I have been trying to ski skis that require more input, and for me to be more on my game, these are really nice. I have a pair of E-Race Pros 170s (that are currently in Utah (long story) and I will pick these up in January. I think the non Pros are a great every day ski for me, that require more input (certainly in the 175 length) than do the SS i.speeds/e.speeds in the 170 length which are super user friendly. I will have the Pros for when I want to be required to up my game that day or when we have hero snow all over the mountain.
Lastly, these skis remind me of why the E-Original SSs are still the best PMTS learning ski. Super tight TR and lots of sidecut between the middle and the tail. The feedback is immediate they will arc tight turns without perfect input.