Quote from NoDoji:
I think scaling in and out is a great strategy, but I prefer to trade all-in/all-out because I trade the individual price swings. For example, in yesterday's move up I had several long trades, but in between, I had a short trade. If I'd been scaling in and out, long-only, I would've been reducing part of the position on the failure to reach the initial high of the day, and possibly scaling back in to the long on the pullback to the moving average. Instead I was exiting on the failure and reversing to a short position for the pullback (just in case it decided to retrace the entire move up, which CL often does for no particular reason).
ADD: My market timing is just the result of using technical price levels that are honored more often than not. It's a probabilities game and I try to find levels that are commonly worked. In CL these levels are very often honored to the exact tick.
I also lean towards the all-in/all-out camp. The problem with scaling in/out is that it really is alot harder than most people think. What usually happens is that you may end up averaging down and screwing up. Whereas the all-in method implies that you always got your stop immediately entered with your order so less prob to screw up.