The carbon copy is a mess of surface-mounted goodies.. I've opened a couple and closed 'em right back up without learning much - b'cos you have to unscrew everything on the pedal to look at the board. irritating.
What was the brand being used the Behringer stuff? CoolBBD? am I thinking of something else?
CoolAudio. My new EHX stuff uses what look like old stock BBDs - 3007/3101 in the Small Clone - and some custom OTAs in the Small Stone. Haven't checked the mistress though.