Ok, seen them all I think. Most seem like the Chinese castings within a few dollars of one another. The Jaycee stuff always looks great (like implants) but I'm wondering if there's much of a difference in function -or paying for pretty. But, like implants, I do like the look. Add in Aircooled.net who has what looks like the same basic adapter (at twice the price) and highly suggests a re-tap and re-surface for $15 extra. At that rate, for $20 I can just get the Jaycee. I like the guy at Aircooled but wondering... It is the oiling system after all.