Considering you have real money invested I'm uncomfortable giving advice, but I'll happily tell you what I'm doing with my demos.

I'm going to give them some time off phantom to see how they do.

My initial logic was no phantom as it reduces overall profitability, but I was not comfortable with the drawdowns using my logic at the time. I then decided to enable phantom to see if the balance could build up. It has, so now I'm back with phantom off.

For me it is too early to say definitely phantom on or off with the z12 robots because they are trading for income, using optf for position size and without reinvesting of profits. I'm still testing.

I'm sure it is of benefit for my discretionary trading for capital gain, using % balance risk per trade i.e. reinvestment of profits. Discretionary traders always go through periods of being out of touch with the markets, the phantom mechanism would have kept me out of the market entirely in those phases, leaving me much less drawdown to trade my way out of to get to growth again.

This might make more sense in context of my post in this thread:
http://www.opserver.de/ubb7/ubbthreads.php?ubb=showflat&Number=425296&page=19