Oil in compressor housing

[T- Type Tim]

Found this yesterday, pcv is not used instead a closed loop evac system. About a teaspoon was at the lowest point in the compressor , pulled intercooler, about a pint came out. Car still runs good, no smoke, I think the intercooler is acting like a trap and keeping all that oil from getting into the intake. The intercooler efficiency can't be that good .

Anyway, I suspect the o rings in the compessor to be bad. I sent this turbo to turbonetics for this same problem, got an upgrade
about 300 miles and the problem is back. Any other ideas out there as to what this may be?

thanks