Not sure what software you're using. I do all that stuff with thinkScript.
I like to use a 150min LRMA to give me a reliable trend estimate, then do a bunch of smoothing/filtering/differencing or momentum stuff.
I don't have a simple algo using these, but I do something like that. It's more like calculus, though. If you sum the differential of price against an LRMA, you remove trend from a data series, but preserve the changes in momentum. It's kind of like a filter.
The RMF is awesome because it's a non-linear filter that ignores outlier price spikes, and yet has no lag on trend estimation (very similar to KAMA). While the others, like exponential, or wilders smoothed exponential, will follow spikes. If you chart the divergence, you can isolate extremal events in a data series.
I use them to isolate extremal momentum events by applying them to a spread of the summed differential and price.
It's complicated, but I would suggest you use them for their intended purpose, whether its noise filtering, rapid tracking due to aggressive front weighting, or measuring trend strength with varying sensitivity to certain behavior.
Not sure how to make this simple...
This is a chart that uses an LRMA on the upper, then below is price vs the LRMA with two more LRMA on that. It's detrended and the LRMA pair is used to track momentum within the trend. (just a way to use some of them)
View attachment 245144
(this is a treasury fly with an outright ultra bond overlay)
I almost always use VWAP for any kind of trend analysis, though.