what are your color codes? as far as LC coils go, you arent clearing those 31's as much as I think you would? my 7.75 and 8 wrap coils cleared my 33's a bit more than that.
you know what year/make they came off of?
as far as towing etc, I thought the LC coils were just great. I recently helped my mother in law move and she had 56 boxes of books, I packed like 36 boxes of books to the roof in the back with seats down (hundreds and hundreds of pounds) and took measurements, I dropped from 39" at the fender to just about 37" which is still just an inch lower than the OME coils, whereas with the thicker spring rate, I think the same load under OME would drop you to 36 or 35".
So really, I think the difference is perceived cuz you are coming from higher and notice a bigger change. OME gets the lift not by being tall but compacting the springs more. so you are shorter to begin with and wont sag as much, but will still be lower...
it all depends on your viewpoint, I think hes still gonna be taller than he would if he had OME towing anything.