Actually you don't want to use steel wool!
It will break down and cycle through the system. Very bad.
Nylon mesh scrubbies are the best option.
Also the PCV valve Power restrictor is nothing more than the same plug used in the TH fix. Just shortened and with a bigger hole in it.
I tell you some people with try to sell anything on the internet.
Just running the Separator alone kept my intakes pretty clean, but the oil separator accumulated a good deal of oil every 500 miles and still cycled some (but significantly less) into the intakes.
After 15k the intakes were clean, but greasy to the touch. The TB area was a little more dirty and starting to cake.
The first 1000 miles with the restrictor and the oil separator had less then 1 oz of oil in it (just a fraction of what it was before!) and the TB area was as clean as the day I put it back together.
This also includes countless trips well past 7000rpm since I have been testing the rev limiter settings with the Tweecer unit (Finally cracked the codes!

) It pulls hard long past the stock 7k limit!!!