bobloblaw,
(Dude! That is hard to type!)
There is one thing, by having a cap on size, and by being fully invested, you are by nature forced to take some profits from things that have gotten ahead of themselves, and you have to make a value judgement between, better and best, not in or out.
In other words, if you have something that is already overweight in your port, and you add to it, and it goes up, how much can it go up before you have a completely unbalanced port.
It appears to me from watching Saul, that there seems to be a point where you cannot dig out of a buy on the dip hole because if you are correct you will have to take profits before you are in the green on the trade.
It seems to be a better strategy to average up, not down.
Just me, but I have not put skin in the game yet, I am still watching.
Cheers
Qazulight