Do you love your Mad Catz Tournament Edition stick, but hate the square gate that limits fluid movement? Well the gang at the ever kick ass site, ScrewAttack.com, put together a handy video which shows you how to swap out the default square gate for an 8-way octagonal gate.
Disclaimer: Opening up your Mad Catz stick will void the 90-day warranty.
One thing the guys didn't mention, if you're having trouble getting the square gate off, use a flathead screwdriver to press one of the four black tabs in at a time. This will not only get the tabs in position, but also give you good leverage to make popping the gate off easier.
For those of you who are too afraid to mod your stick, or can't afford the $5, make sure you check out the Shortcuts for Shoryuken motions guide, which some users of square gates swear by.