Logic Pro 9 pedalboard pedal modelling


Does anyone know what actual pedal the 'squash' compressor pedal in pedalboard was modeled on? Ross-modified MXR dyna (which is sort of looks like)? I want to get a similar sound to what I'm getting in Logic in my 'real' rig, and so far the couple comp pedals I've tried don't quite do it.
I can't say for sure, but I don't think the pedals are modeled after real gear like the amps and cabinets are. I once spent several hours trying to match the Pedalboard with my pedalboard and other modeled pedals (Line 6, Eleven, and other). Couldn't find anything definitive so I gave up. It was a different story with the amps.