When the Georgia Cyclone opened in 1990 it was amazing, a real thriller! When I went back a few years later, the first drop and 'post turn' drop (the one under the first curve) had been reprofiled. Those drops really lost their kick! I think other parts of the ride were reprofiled as well. Also, the brakes were on hard and the ride got rough (bad rough -> bumpy track).
The best cy-Clone, as running (IMHO) is the Viper here at SFGAm. It's fast and smooth, has nice air time and laterals, and not one brake during the ride. The one thing I don't like about Viper (common with Psyclone at MM) is that they "drop" into the brake run. Whatta waste of energy!
The Texas Cyclone, last time I rode it, was OK, but no punch with those Morgan trains. The first time I rode it I thought I broke my hip at the bottom of the first drop - seriously! The Psyclone at MM was kinda junkie. I hope they do something good with that one!
Of course, the original at Coney is the best.