I found you can use the "chopper" to try and achieve the same effect. Use a sawtooth rising and falling insync, and set it to mono so it kinda pumps, but this often too much...cos it only cuts 100%.

I remember the reverse reverb prob I was havin too, still havent found a pug that will do this, but the chopper will added after the reverb. bit crude tho.

btw, sidechaining is simply the gain control or what? its just control; no signal gets passed through it does it?

luke