Thanks for the offer but I don't think it will make that much difference from the 6 degree I'm running now, plus I'm running a 130mm. I'm just looking at options right now. I believe my condition has improved enough for me to drop down into a low position but the just from +6 to -6 is a huge jump. I've worked my way down from a 20 degree to the now 6, and I'll shamelessly admit that it's mostly because I like the looks of a more horizontal stem (just not enough to sacrifice comfort). A 0 degree stem will take me down 13 mm and forward 4.

Once again, thanks for the kind offer.