i think tenergy 05 bryce speed fx and sriver g2 fx are comparable in their hardness: tenergy harder than bryce harder than sriver. Sriver g2 fx is def teh softest of the three lines of butterfly tensors. it is not as good for really advanced players as for people developping loop. it is not very fast, good for a solid control blocking game (like kentas ) it has spin between bryce and tenergy, the topsheet is really not at all tacky. the sponge is not very elastic eitehr, so the ball kind of sinks ito the rubber. it definitely has differnt feel than bryce and tenergy. best used on backhand in my opinion.
