thanks to "Chang" for mentioning the trysis. Was it the discovery of the genesis that had the first suspension? I think suspensions feel great. The liability with head has always been feel. Many of their frames lack a lively feel including the 270 and tour 600 which feel like pre chewed gum.
The prestige pro and graphite edge were very stiff but lively, from there the stiffness stayed but the feel went downhill.
these solid numbers are called "trek font", similar numbers which are hollow are not "trek font". Trek font 600's are said to have the best feel, indeed my early green prestige feels like a prostaff, not the racquet pictured but my pc 600.