I have had both pistols--and like them both---In my opinion they trigger on the sd9ve is an obvious improvement over the SW---the length of travel is the same but the pull is not as hard-----I sold my SW and now have the SD and find it easier to shoot.
What are the SW line bringing in on trade-in? I have a couple of them, and would be willing to trade up...as long as it's a trade up and not a trade sideways.