+1 to the notion that your seat doesn't fit your particular body. I have 5 recumbents - 3 two-wheeled and 2 three-wheeled. The only one that ever gave me some butt problems was an Haluzak Horizon which is slightly too far off the ground for my size. All the others were so much more comfortable than an upright. Time to either modify the seat or find a different recumbent.