I have done UOA'*. Quite regularly. I've been doing extended oil life testing with Mobil1. Up to 8k miles now, with no adverse effects. My 8k UOA was lower in all contaminants than the 'average' dino juice 3k change. ALL contaminants.
Have you ever seen an engine fail from silicon injestion?
Your paranoia amazes me. Stick with the paper filters and the stant radiator caps for your peace of mind, but don't spread your paranoia to members here with little or no evidence to back it up.
We want to see DOCUMENTED FAILURES caused by a K&N. Specifically with regards to Si injestion.
Show me the Money, Jerry.