Hi Henry.
I had MOM resurfacing but now have THR’s COC (done 2020) and have been cleared to skydive on them so running is a better option I would like to think. The revision is also better if required. I have done a few small runs and seems good. You have done well for your MOM resurfacing. At the 5 year mark I had them removed due to Metalosis poisoning, but at some point they will fail I was told and you will require a THR. Seems to be around that 5 year mark. There are many options but I am pretty biased with MOM hips as it can make some rather crook what I have found. Good luck if it wont fix itself then it will be a problem you have to work at. Cheers K