stuck post
I bought a klein attitude 91 with stuck post in tube. Had done some research that I would need to enlist the support of wizards of the bike mechanics inner forum, the purchase of industrial vices,highly dangerous blow torch equipment, sawing methods and even the crazy yanks pulling a post down wedged between two tree branches.
I got home after picking up the bike, and set to work on the bike upgrades, feeling curious about the seatpost, I used a technique basically using brute force + god like luck+gt85.
After 20 minutes of twisting and pulling and today a stiff back and bruised hands the seatpost loosened and came out!
Good luck