turbo oil drain

mine is dry with two breathers on my valve cover. no pcv. turbo is dry but the valve cover gets a nice coating after a few hard pulls.

you could use a restrictor but start big and work your way small until it stops leaking. then decide if its still getting sufficient flow.

as for the seal. there isnt any kind of rubber seal on the hot side. there is what is referred to as a piston ring that rides on the shaft. not sure if you are up to the task of taking your turbo apart but you could probably get away with cleaning out the ring land. my understanding is that when they fail its because the ring land is dirty with coke and starts to spin the ring. when i rebuilt my h1c the only real problem i found with it was the dirty ring land. there was evidence of it leaking oil when i got it and there was a slight hitch when spun by hand. also wouldnt spin long when spun by hand. after cleaning it really well and replacing the piston rings it spins really nice (spins for 10-20 seconds after i shut it off) and is really smooth. spins for a couple seconds when spun by hand now as well. there are videos on youtube for rebuilding turbos. there are a lot. may be able to find a video for your specific turbo. sounded like yours was new though. might be worth calling the manufacturer and letting them know what is happening.