Adam is quite correct, IMHO!
I think that you are tying yourself up in knots about the ignition.
'Programmed' ignitions are nothing new in two stroke engine optimisation, but that doesn't mean that they are essential @ this level. If I were you, I would seek advice as previously suggested & contact the manufacturer or CamLam. Did you read that Post that was mentioned previously here? It's all very well seeking opinion, & the fact that the manufacturer of the cylinder kit has responded, is good to see. However, the 'issue' here is the ignition.
My own opinion is that if the ignition is set @ a recommended DBTDC with figures stated by the manufacturer or agent, then you will have taken the best advice possible.
If that would still cause you to worry, then 'go back' to a fixed ignition. If you do that, you'll no doubt worry about what DBTDC to use.
I think a variable ignition is very good for a performance engine & have used them for decades on track machines. That said, it was proven to me that they are not essential as the last time I went to Cadwell Park, only a few years ago, despite the results & hype that was made public, the fastest scooter on track was Ralpth Saxelby's with Ryan piloting it. He came from behind due to his oversight in not turning the fuel on! Despite the 'Red Mist' factor, it goes to show that the engine works really well, despite the technology being decades old. Given an extra lap to the race, he would have blitzed the Italians on those engines that are now available for sale for significantly more than the value of the scooter they are fitted to!
(For the record, the other significant thing about the race set up was that we removed the anti-dive from the front end, so that goes to show it is not all that some would have you believe.......)