No, you STILL don't get it! You cannot "put in a similar performance" because you have to adhere to the additional weekly risk targets AND the scale up plan, which are NOT in the combine. This means when you review your stats in the combine and had days where you scaled up in any way, shape or form that differs from the live account parameters, or if you took a daily draw that was in excess of the average daily draw allowed on days 1-10 of the live account, then you cannot rely on those stats to measure your performance!
I know we're in disagreement here. You have an issue with my repeated references to the live account, however I'm emphasizing that it's not how you pass the combine that matters, it's how you trade on those critical first 10 days.
Let's just take the combine you passed, for example. Just review your stats and see how you met the performance metrics, and then see if that was allowable on days 1-10 in the live account.
Then, make whatever modifications necessary (such as your prior example of trading with half-risk), as that will determine your EVC (expected value cushion) of the live account on days 1-10.
Yes, we're in agreement on the fact of day 11+ there are no further constraints to work up the account size. And of course one should trade in practice to see if they can meet the performance objectives before taking the combine, makes perfect sense.
In any case, best of luck with the LTP.