I just got the Ambush for this past season. And i love them, no reason to buy the ruler over the ambush. From my experience, the boots are super light, to me at least, and are very comfortable even with the stock footbeds. I have no complaints. and after about 40ish days of riding, the boots are still in extremely good shape and most of those days were spent in the trees and being ridden hard. So yeah, Ambush over Ruler, but if you really see a need for the Imperial then go that route. But i think the Ambush should be perfectly fine. But like its always been said, whatever fits you best.