My opinion is Floats are far superior to Elka's, particularly the single speed compression only adjustable in the "legacy" kit, and worth the money. For a long time I planned on getting Roll arms but the more I researched it the more I felt I was paying too much for just the name. I think Fireball are the best arms out there, if for no other reason you get the extra shaft travel on the shock. All things being equal this is better IMO. Hence why I now run the Fireball arms. The Alba arms I had before worked excellent and are likely the best value.
Unless I got an offer I couldn't refuse I plan on keeping the stage 4 for another bike I'm working on. They are 19.25" and without being shortened will only work on Fireball arms. I do have some 17.25" Axis, 20" Axis. 17" Elka Stage 4 I'm selling. All are rebound, compression and preload adjustable.