Well in THEORY they work for any market but in practice I don’t find that. It’s a trend following system and in my humble opinion: nothing trends better than (most) commodities. But I guess if you know your forex pairs well: then you’d have no problem using it on a pair that normally trends and trends WELL. There would be no reason ‘tweak’ anything if you traded the ‘right’ pair with it.
I don’t know: maybe a thread ‘dedicated’ to it would be interesting for some??? There are indeed one or two of my own ‘tweaks’ that I’ve found improve performance BUT ONLY SLIGHTLY that is. And of course: it’s not everyone’s ‘cup of tea’ either (sometimes I wonder if it’s mine given the patience that is required to trade it)!!! LOL!!!