"Interesting--I like my 3.6R’s with the Mye stands, Cardas jumpers and SR Red fuses. I would put them up against stock 3.7i’s. Maybe.....any more opinions on the two?"
I have owned the 3.6 and currently the 3.7, I would say both have their strenghts and weaknesses;
The 3.7 is more coherent with slightly better midbass slam, more articulate but sounds a bit leaner than the 3.6. I sometimes miss the fuller lows.