Running

Threshold session today 4x10 mins @3:38 P/km pace alternating the endorphin pros and the alphaflys. No difference in HR at that pace just very different feel. The Sauconys feel fast and suit my foot shape better. They are however noticeably stiffer than the Nikes and I'm having to roll my feet after running in the Sauconys as the entire sole aches a little after a hard session in them. I don't have that issue with the alphaflys or my 4% flykits. It isn't really an issue as a quick roll and a rub and they are fine plus the shoes will break in a little and my feet will get used to the extra stiffness but worth noting especially if new to carbon plated shoes. The Sauconys are definitely a pure race shoe and for me they don't start to wake up until about 4:20 P/km pace which is only a little slower than my marathon pace but the alphaflys feel good at all speeds. I've gone right down to 5+ min P/km for long easy runs in the Nikes and still get that bounce. So the Nikes work at a wider range of paces but will suit less feet as they are very narrow and high in the arch and in combination with the high stack they can feel a little unstable and if you have any unwanted foot roll these will exaggerate it and they don't actually feel that fast because of their bulk (not weight) but they are very fast. The Sauconys are only suited to faster runs for faster runners and they are extremely stiff and whilst their shape will suit more people as its just like a regular trainer those other characteristics won't which i assume is why they offer the speed version. The Sauconys do feel quicker even if they aren't in comparison to the alphafly and i just prefer how they feel. So I'm still leaning towards the Sauconys for my race shoe at this stage. At the end of this months block I'm going to have a crack at either a sub hr 10 miler or 1:18-1:20 for a half which will be a pb for me if i pull it off and if i don't i certainly can't blame it on the shoes.