thats not the pcv valves fault. sounds like something else is wrong. PCV valves are good for the engine they help keep it clean. I used to run without one and the oil vapors that came out of the breathers(even with a filtered one) just got all over the hood and made a oily dirty film all over. Put the pcv system back in.
The PCV is actually good for the engine though. It allows blow by vapors to get removed by getting sucked back into the intake system. while these get removed fresh air enters your engine through the breather. this keeps the highly acidic and corrosive blow by gases to not eat up your oil and metals inside the engine.
If you are getting anything but gases/vapors high enough up to go through your PCV/Breather valve you got other problems. do your valve covers have baffels in them? excessive blow by? could possibly even have a oil return problem, maybe oil is not draining out of the heads as fast as your pump is pumping it. If your heads are filling up with oil, this closes off the path to the breathers/pcv effectively making it a closed system, which ended up turning your dipstick into a pressure relief valve.
Im just throwing some other stuff to look at.
Also a vacuum pump is no different than a PCV valve with the exception of being engine driven instead of vacuum from the intake. You're still going to be sucking oil.