Previously, I've used an Amplitube 3 wah pedal by selecting it as a parameter then adjusting with an envelope. It worked ok but not great. I've now got a guitar track with some longish notes that I want to use a wah effect on but need to be able to control the effect. I've tried a few wah vst's, but most are auto and difficult to control. Any suggestions on a vst that can be easily controlled manually?