Saddle problem.

[boydj]

The successor to the Spoon from the Fabric range, the Scoop, comes in several options and I have it on all my bikes, two Flat and two Radius. I find both models to be good all-day saddles.

 

[MrBeanz]

Have you experimented with saddle tilt? That can have a significant affect.

Oh heck yeah! Fore and aft position as well has a big affect on comfort.