So finally got time to give an update on this ecu transplant.
Most will know this has taken a long time and a fair amount of money for me to go down this route, I have had the car back for some time now, the mapping has just not been correct, CMS and Klassen have worked for many months, in fact longer, trying to get the map to work the way it should for an supercharger setup, however it just won't. So after my last visit to CMS to get what we had hoped was the final version put on the car (the drive home was just was not pleasant) it was time to make hard decisions. The z20let ecu works great for a turbo but it doesn't for a s/c thats it...
Last week Jon and myself came to the decision to pull the plug 
, real shame after all the effect but it just was not going anywhere, before I decided which ecu to use LSJ as Joe has done or DTA as I have had one sat on my desk for 3 years, we decided to try the z22se one again, as in all the time I have had the harrop CMS and Klassen have managed to do far more with the ecu than they originally thought they could.
They had the other harroped car there which they have been working on and so they put original ecu back on and did some mapping. IT worked 
Jon will probably post here at some time with all the details as it's not my car I won't say much, but it made somewhere near 370 and drive as Jon said" Like and s/c should drive"
Finally some great news, I will replace the ecu again once I have managed to buy back the bits as I sold 
like, loom, TB act...
I am flat out at work this month and away all next so for me it will be Sept before I am back on the road driving my car again 
long wait but I am certain it will be worth it.