Don't really use indicators. I've been at this awhile so I know what they will look like by eyeballing the chart. They are lagging by definition (derived). They work great for most people though, especially as filters.
I do use volume, but only on a 5 min as a mkt is approaching S/R.
Is RSI best? I'm not the one to ask. What you are working seems to work great for you?
What markets do you trade? On short term, I will only trade Euro, Japan, and Pound. (trade mini SP too, but WAY short term).
I will position Aussie and CD on rare occaision. They trend well.
Jay