I’ve got so much potential to increase my vo2 max power! Not done any interval training for three years 
I do however ride a ton and a lot of that’s off road which is stochastic in nature.
The crits I’m referring to are actually crit training but seeing as they are on a proper circuit, with a legit coach and 30 of the best riders in the region and we have one or two races per session, they are essentially like a pretty decent crit.
These sessions will become my vo2 max training from now on. I push so much harder in company. I used to do them for years before I took a break from it all.
I figure as I’m rebuilding my speed, I’d like to make sure my form was really good to match it.