Hmm, do you mean straight tick charts, or tick bar charts ( such as 10 tick bars, 20 tick bars ?)
I use an ordinary tick chart that records every move with volume below it, although find it only really useful in powerfull trend moves. The Linda bradford Raschke "3 little indians" ( three consecutive spikes down on the end of a move ) shows up relatively often in the dax, and is much more visible on tick than on bar charts, particulary when you have the volume below it.
Tick bar charts ( such as the 10 tick bar chart) are slightly strange (like point and figure) in times of low volume/activity, and I gave up on using them.
Since using a 14, 3, 3 period stochastic on a 1 min and 3 min though, ( for divergence trading) found that a 14,3,4 stch on a 10 tick bar picks up divergence sometimes which is barely apparent on a 1 min. Haven't traded enough of them yet though.