[Closed] Stuck seatpost

Right it is a grim day outside, the other bike is ready for action tomorrow and it is time to tackle this problem.

The seatpost is stuck in my commuter bike. The frame is a Specialized Rockhopper, the seatpost is aluminium. It has been stuck in there for about a year. During this period I have ridden without the seatclamp done up and put in plus gas at the top. I have also subjected it to some twisting sessions with the aid of friends and an old saddle. It remains in the same place. I do not have a bench vice and don't want to do anything that would damage the paint.

I have previously had the same problem on the bike which I think is what has made it susceptible to the same problem as the tubes are pitted inside. My approach last time was to saw the seatpost off about an inch above the seatube. I then used a hacksaw blade to very carefully make vertical cuts down the length of the inside of the seatpost, two cuts fairly close to one another and the other two close to each other on the opposite side. When I was as close to through as I dared I put a small wooden wedge at the top and knocked it down the length of the narrow strip separating it from the rest of the seatpost. I then did the same on the other narrow strip after which the larger strips could be removed with molgrips.

Any improvements on this technique or other measures to try first which will result in me getting it out by tonight (ie. no long term oil soaking approaches).

Thanks for any ideas!