I have very stiff hips, and when put on my back Im horrible-agilitywise especially since i put on some weight. I just absolutely am so slow moving around when Im on my back. I have some limitations- I dont allow myself to get stacked cause ive had lower back issues. The best thing I do now when i get put on my back is turtle up or stand up cause Im pretty strong for my weight- 5'8 200lbs. My guard replacement is horrible- and something I will obviously work on. My question for you guys with slow/stiff hips/hip movement, do you guys just resort to turtling/standing or is this just a bad mentality to have and I should avoid turtling and force a bottom game to come out sometime. When Im on bottom, I'm at home with halfguard and sometimes Z. When I was lighter I had a bit more mobile hips and way better cardio (of course), and one day I may be back at 180lbs, but for now, its not gonna happen anytime soon, so I have to adapt.