Okay... this just got about a million times weirder and it has reminded me of another "bug" that has been annoying the hell out of me for ages... but I'll leave that bug for last.
First off I AM on the 1.0.1 release so that's good (thanks for pointing that out though).
So I'm using my Pre Master for this test. I feed everything into this and treat it like my master except do my whole mix processing there, instead of the master. Well I inserted the CL and started clicking away at the power button. I was getting a little glitch but not the scritchy scratchy. It was more of a skip like my latency settings were too low so I opened the Scarlett panel and changed them. That totally screwed up Sonar and gave me like heavy digital distortion munchkin playback (changing the ASIO buffer from the panel with Sonar open has always caused problems so I usually close Sonar before doing it but never had the munchkin thing before).
Anyway I close Sonar and reopened and tried again with the lowered ASIO buffer setting. I started clicking the power button on the CL and it was still giving me that little skip (but not the scritchy scratchy). So I wanted to test out Alex's thing to see if the other modules would make noise when clicking the power button and they DID!!! I had never had that before and I was totally flipping out!
THEN I realized the Prochannel Strip's MAIN POWER BUTTON wasn't even ON!!! Those glitches were happening with the PC COMPLETELY TURNED OFF!!! When I turned the PC strip back on... get this... when I would click on the power buttons of the OTHER modules that had just been making noise with the strip OFF (Quad Curve, Console Emu, CA2A, etc...) they no longer made ANY noise when clicking their power buttons! WTF?! So I tried the Concrete Limiter's power button and the scritchy scratchy noise came BACK (when it was a skip noise with the whole strip turned off) except there was a new sound like an old cassette deck being turned on/stopped in a weird way (like the tape noise of it being played back ultra fast or something). SO I think MAYBE that has something to do with an instance of the tape sim I introduced somewhere else in the chain the last time I worked on the project.
Wow. Crazy. I'll have to do some more tests and go back to a version without the Tape Sim. This may actually be a TS problem.
Could that thing actually mimic the sound of a bad start/stop of physical tape? Because that is a really dumb thing to emulate. lol