The G027 "8.25" tapers like crazy as well...i've skated one and have another in the cupboard, I pulled it out the other day and measured it out of curiousity. 8.2ish at the front bolts, just over 8" at the back!
It's a great shape, but calling it 8.25 is very generous, I stuck it next to an 8.25" WKND deck which is true to width all the way and it looks so different.
G027 is a fun,mellow board but you can absolutely feel the taper when you skate it, I had to be more conscious of having the board the right way round for certain tricks than I would on say a BBS deck.