The cost of getting your own seat upgraded by Spencer is a lot less than $250. What am I missing here? I guess then you'll have two seats? I like my seat now that I had the Spencer LD upgrade done to it.
Spencer's modification is ~$90.00. However, that doesn't include shipping both ways or the cost of the OEM seat. So, $250.00 isn't unjustified. BTW, unless the modification process is different when you had yours modified, I don't think he uses gel anymore.