I do not know anything about the regular Floats, other then the last I heard, they do not make them for the TRX450R. I have heard of people using the 400EX Floats on their 450R's, not sure what the difference is between shocks for the two models.
The Floats are only pressure and rebound adjustable, while your stock shocks have compression, rebound, and preload. Floats do not have a external resivour, less oil capacity? May lead to the Floats fading faster? Not sure. Look at the stock shocks on a 400EX, the Floats are probably a good upgrade compared to those. Now go look at your stock 450R shocks, do you think they will still be a good upgrade? Probably a reason Fox does not make them for the 450R's. I would get your stock shocks revalved over the Floats. Now if you wanted the Evols, that may be another story....
2004 TRX450R, 2008 TRX700XX
(BITD #639 Quad Ironman Expert)
2015 sponsors: Teixeiratech.com, Motowoz.com, Snailmotorsports.com, My bank account.