It should make no difference, any system sold should work in all market conditions.
Interesting.  I've never heard of a system that works in all market conditions.  For instance a trend following system gets beaten to death in a choppy market.  The other point is that any system will have losses.  All that matters is that the winners are bigger and/or more frequent than the losers.
I'll certainly run Net Trap for a few weeks more because it is not possible to collect any meaningful statistics over a short term.  And it is those statistics that provide the confidence to continue with a system during the inevitable drawdowns.
Of course you have to have a personal cutoff when you decide an opportunity is not worth pursuing.  That difficult line between determination and stubborness!
My own net trap IS underwater after 2 weeks, but most of that was a trade I missed that made 50 pips. NT's fault or mine?