Has anybody here run a Jammin JPX 21 or Picco P7 Evo 2/3, and if so, how do they compare to the Argus?

I had the Nosram 21RR - a Picco-built Jammin twin(along with the LRP Z21X), and it was awesome with the 2063 pipe. They are now being sold off for really good prices, I guess because LRP's new race engines are being supplied by OS.. I have an Argus NIB waiting for break-in, but due to summer holiday and having too many engines in general, haven't gotten to it yet.. Anyway, I would be curious how the Picco engines (not the 3-ports, Boosts, etc.., but the P7's.. - Nosram, LRP, Jammin, Orion CRF, etc..) compare to the Argus..