I'm stretching a fair amount, Pete. At 17 months, 14 months, I can say that I'm probably back to about 75%. I'm being very conservative, but I can do front kicks, roundhouse kicks to mid section. The real test will be full strength side kicks, axe kicks and wheel kicks.
The stretches I can do are sitting, legs split sideways, I can touch my chest to my thighs in both directions, can't touch my chest to the floor frontwards (used to do that easily pre OA), I can do the stretch where you squat over one leg while keeping the other straight. I also tuck one leg and lean forward. I lie on my back and used a band to support my leg, bring it up in front, then stretch it to the side. I can get a good ways very comfortably, and that has been a progressive thing, little by little and always stopped when it felt slightly tight, never mind pain.
Standing, I can touch palms to the floor with legs locked without warming up, my goal is my old touch head to knees.
One of the things that helped me early was using bands to hold my foot while stretching the leg in all directions while on the bed. By early, I mean at about where you are, I didn't do aggressive stretching really early.
One thing that killed me this weekend was going to my daughter's dance recital at Amherst College. She performed in several dances, and in one a partner of hers (male dancer) did one of my fancy completely impractical kicks as part of the dance: a jumping 360 degree crescent. You'd be mad to use it anywhere, but it sure looks purty. I looked at it and told my girlfriend that seven years ago, that was easy, and I promised myself I'd do it again.