Hi,
I dont believe we didnt have any answers for you at all. I suggested you send the ecu back for us to check over if you were confident the loom you used is working correctly. Also, your rev counter is NOT dead after being worked on by motorsport developments as you suggested at all. Reading half is EXACTLY what you would expect to happen when you convert to wasted spark, this has NOTHING to do with the clocks themselves, its to do with the signal output being halved which is fixed by pin 21 on teh loom being connected to our tach driver. Well, at least it is on the loom that WE sell.

The loom was NOT purchased from us so its impossible for me to help you with the wiring aspect although i DID tell you how to check the drive circuit independanly of your loom as i recall advising you to run a fresh and independant wire from ecu pin 21 to the green wire on the back of the tach unit and that would drive the tach properly. Have you done this? What was the result?

I also told you that if you bring me the car i will find and rectify the fault?

Please tell me what more you wanted me to say?