I was using GFX after a ping pong delay, on a send track. GFX outputs the only left channel from the delay as a mono signal, even with no effects ON. I know some effects are mono, but I think it would better if they had 2 outs, specially with no effects ON. The reverse delay isn't syncing properly. It would be really nice to have sync options for the modulation effects. It's kinda difficult to control the in/out volume with the mouse. I was trying to set the volume at +1 or -1 and I just wasn't able do to that. They move too fast. Slower 0.1db increments would be super helpful for the in/out volume and the IR processor volume as well. The Sonic Anomaly SEGX2 Gate and even the JS SEG Gate versions from Reaper were the best free gates I found until now. The envelope sounds more natural then the gate from GFX.