DSE vs TCI vs Art Morrison

[Bobs 67Camaro]

It was my understanding that the TCI car ran 450#/in ft and 325 #/in rear for the 2009 Super Chevy Competition. (which apparently rode rough--per Super Chevy May 2010). Now they sell kits with 350/250 # coils. (these rates are assuming an LS2 or LS3 Block). I would assume that they have a rather soft ride in comparison?

I spoke with Roger from Speedtech, (thanks for the help!), and he stated that they sell the track time package with 450/220# coils. (these rates are assuming an LS2 or LS3 Block) Unless I'm missing something, wouldn't the Speedtech system ride nearly as rough as the originally tested TCI Car given the 450# rates?

Thanks in advance for you input.
Bobby