I played with Mazunov blades in the 90s with speed glue and Bryce. Mazunovs can be quite heavy (!!). They have a very nice comfortable handle (almost as large as Stiga legend). Their playing properties are quite variable, but they are often as fast as TBS (or the Viscaria, which I use). The Butterfly ALC blades are not so fast that you can't use them with modern offensive rubbers, and the TBS matches particularly nicely with Tenergy of any type. The TB-ALC is a subtle redesign of the TBS that was designed to make it work better with T05. The wood is pretty similar, depending on which one you get, the TB-ALC often feels a little bit crisper. (I suspect that may be due to a newer gluing method they are using to assemble the plies). But the main difference (vs. TBS) is the TB-ALC has a slightly longer handle, and is therefore less head-heavy. That means it works a bit better with very heavy rubbers, like pretty much all of the good ones made now --- Tenergy, Evolution, Bluefire, etc. Maze will be like a slightly slower version of TBS and has a very distinctive handle shapes in both straight and flare. I would suggest that a Mazunov will be incredibly heavy with Tenmergy rubbers -- as someone noted the blade itself can reach 105 g. It seems to me like an elbow injury weighting to happen. I would suggest that you would be better off with one of the Butterfly ALC blades -- Maze, TBS, TB-ALC, Viscaria, IF-ALC, etc. --- and I would suggest a TB-ALC as a really good choice. As for T80 itself, it is correct that it plays somewhere in between T05 and T64, but in pretty much every property it tends to be closer to T05 than T64. I think T80 works well on the BH side but I still prefer T05 on forehand (which I used for five years). Actually these days I am using Evo MX-P on both sides, which I think is fantastic, and saves me 40 USD every time I change my rubber. A quite large number of high level players with good body rotation etc. use these blades effectively. I disagree with the idea that they are somehow "too fast".