Well, It is actually fucking me up. I have too much static flexibility in my groin now, and my hip is tracking strangely. This is making my sumo deadlift hurt like hell in the hip flexor/groin area.
I'm not going to give up totally though, instead, for the next 4-8 weeks I'll allow myself to do flexibility work, but ONLY while moving through a range of motion under some minimal load at least.
So, dropping the static stretches and switching them out for wide stance pullthroughs, sumo pin pulls, and sumo RDLs/SLDLs. Along with band ab/adduction x20 for a few sets before and after workouts.
It's quite weird, because squatting with my heels around 24 inches apart gives me absolutely no pain, but as soon as it's a dead pull with the exact same stance or wider, my medial hip flexor/pectineus area just pinches like a son of a bitch and I cant drive hard with my full strength.
So static stretching CAN fuck you up, if you are a dumbass like me and open up new ROM that hasn't been used in a dynamic fashion