feather touch traditional valve will be easier than a pressure wash trigger any day, those things are meant to hold 4000 psi, and be squeezed and held open, no the on off action that carpet cleaning gives them, they will also wear out prematurely because of this.
The 2" tube isn't causing CT, it' poorly designed trigger and valve assemblies that make you "reach" for it each time that is the problem.
Also consider the trigger "slack" if you can pull your trigger up an inch before it engages the valve stem, you have a problem. You should only have to pull 1/2 that distance or less.
Next, consider the pressure required to open the valve, if your valve has to actually be "squeezed" you need a new valve, a feather touch can be actuated by holding the 2" tube in your hand, just the weight of it.
Jimmy should be along anytime now to say how his Castex valve is just the ticket...