Well, Kevin, I have nothing against the T-90 as I have never even seen one, but I am glad that you decided on the T.H.F.6.-A. I am still learning mine and I have had it for about 3 months now. But I would like to know how to set the P.L. tones without the use of the software. I also bought the carrying case, and for my money, I think there is way too much swivel on the belt clip. That is the one thing I don't like about the carrying case. 73. Harvey Heagy (N.5.H.A.U.)