just to chime in here a bit: a few mo. ago, i had a question and wanted a non biased opinion on putting a pump together by using some different pump man. parts, duane did not know me as toddnjuzz from the boards but just as a guy from california. He spent at least a half an hr with me on the phone telling me the in's and out's about the differences in pumps and the cost of components,(schooling me!) duane is the sole reason why i went the route that i went during my pump re-build, dont get me wrong, jack knows his "shizzle" but i have not gotten to the piont where i am giong to use his services (need to save some more money) i dont think there is anything wrong with the way duane runns his buss. or jack for that matter, both of these guys are a "sure fire" bet that your questions will be answered to the "T" if they are asked.
Duane is doing a hell of a job and is one "HELL" of a "PROFESSIONAL"i might go one step further and say his customer service is way above par as well.
todd