I would at least check the oil level on the dipstick and give the oil a smell test. If the level is high, and the oil smells of fuel, then you may have a leaky float valve, feeding fuel to the crankcase, diluting the oil, and raising the level such that it gets blown out at the pump. Also check that the crankcase is sealed properly to prevent 'pumping' action in the crankcase, causing over pressure in the crankcase.
If you have good compression, good power, and there is no indication of oil burning in the exhaust, blue smoke, your rings are likely in good condition, so look elsewhere for a reason for the crankcase pressurizing.
tom