Hi Was flying my P3P recently and had a couple of bouncy landings where it tipped to the side. Unfortunately prop guards weren't on (they will always be in the future). All seemed well despite this, but once home, twisting one of the pops I heard a metallic sound. This was reproducible with just small spins and was quite loud. The motor for the other prop that stalled on the ground also made the same sound on a couple of spins but then was fine. Other people's experiences suggested this was bearings so rather than take chances I bought a couple of motors and a pair of blades ready to replace. I've got as far as taking the top off, but the last few times I've spun the motors by hand they've not made any bearing noises at all and feel identical resistance wise as the other two. I can easily replace and as I've done the hardest part in getting the top off, I suppose I might as well complete the job, but I'm wondering whether in all probability the ones I'm about to replace are actually fine after all. There was very definitely an issue with one of them, but can the bearings sort themselves out so to speak so that they're now no more likely to be a future problem than any other motor? What would you do at this point?