Which Cali76 to buy?

As the title suggests, which Cali76 Compressor should I get?

I've been looking at them for years but now I have a real reason to get one so I think I'm ready to pull the trigger.

it's for Bass, 95% of the time it's a super clean tone and 5% of the time it's only subtle drive/saturation. Soul/R&B type sound. I use a Moog Low pass filter with all the high end rolled off which is probably worth noting.

The obvious answer is either the Compact Bass, Bass Comp Mk1 or Bass Comp Mk2 but has anyone tried any of the other options with bass?

And the age old question, start or end of the chain?

Thanks