I have used the TIKI briefly and while I cannot speak to how wonderfully it performed in prior times, these days I frankly think it is grossly over-rated.
Stick with the TICK and TRIN and gets lots of practice following the tape (time and sales) and you will be right more often than not.
If you also add pit audio in addition to that and you take the time to discern not only how the volume level changes when actions begin and subside but also learn some of the pit audio jargon that Soultrader was kind enough to provide at this forum, then you should fare even better.
Happy Trading
