Also I got a tip from an ex RL fighter pilot who said not to use the finger tip to try to move the TDC. Use the middle 1/3 of your middle finger. I tried it and with the correct sensitivities it work really well. Seems a little weird but he said that it how the real ones are designed and that lots of RL pilots initially have trouble over controlling the TDC because they try to use the tip instead of the middle 1/3. Once I tried it my control level improved dramatically. Position of the throttle low on a box instead of like me up on the desk could also help.
Would be great though if the warthog one was like the real TDC switch.