Hard to say if I would pick tick or trin if I could only use one. They do different things but are complementary to an extent. I use NYSE tick though. Prem is also useful to indicate program trading levels. I would say put them all three up with the NQ and ES, watch them for a few weeks, experiment with indicators on them and see what turns up. The beauty of the stock indexes is we have these extra tools we don't have on other markets. Why not use them? I will also say that different data vendors produce different numbers for these indicators, and I have found in the past that something that worked with one vendor wouldn't work with another one. If youare limited by screen space, monitors and extra vid cards are very cheap compared towhat y9u can make or lose in the markets.