I wasn't saying they were wrong. I just didn't want anyone to think they were 'proper' for all persons or situations.
I think I also mentioned they would/could work well with either LD-AIM or AIM.
I forgot I suggested them to you (how long ago?).
I pretty much use 9% for Sells (minimum), 11% for Buys (again, minimum), and no Safe. But I also won't Sell for less than a 25% LIFO gain or Buy closer than 15% lower than my last transaction. I also tend to make those thresholds tougher on consecutive Buys. I think similar to you adding 5% to Safe in similar circumstances.