restoring gel coat methods

I still hear two diffrent schools of thought on trying to get back a shine on a heavy oxyidised hull. I'm talking no reflection and a white palm after running your hand over it. One is the sandpaper veryfine grit many grades or rubbing compound then finness. Has anybody brought back a shine using this or anyother method? Then there is this other one I'll try to give you the link.
http://www.poliglowproducts.com/index.htm

[Skools Out]

one of the best cleaners i ever used was the blue bottle of 3M Boat Cleaner Wax Compound can be bought at Wal-mart for between 6 to 10 dollars. i just wet the buffer with the wax then buffed it on the boat turned my old baby blue Chaparral back to blue from white.