I think I would leave it alone.. he is pretty much a older horse, and complications could pop up.. And how could he pee after??

kind of off topic but, when we got our morgan years ago, he would pee without dropping for a long time, then one day I saw him drop out in the pasture to pee I noticed why he did not drop while around people, he has scars shaped like a whip on his penis, poor guy. No wonder he did not like people when we got him.. I don't think I would either..