The gators are fun, cleaner cut, smaller clippings, and much further throw of those clippings. It does sound like you are sitting on a tornado when you ramp up to full RPM though.
My pro-tip is to make sure they are balanced _very_ well. They are decently heavier than stock blades and any out of balance will cause increased deck shimmy. I mounted a 5/8 ball bearing to a screw like a poor-mans MAG-1000 and use it to balance, it is an order of magnitude more accurate than a nail or cone balancer. With proper balance all my deck wobble is gone, even the stock blades needed some adjustment to balance and run much smoother now.
