I ALWAYS use tick charts...and NEVER time periods charts.
the reason is that I can adjust the chart to an average tradeable range,, it would be impossible using time frame,,, as you could be in a 10pip range,, price move up or down over 100 pips in ONE minute and you would see nothing but a long long bar where I would probably see every "wave" in that move(my indicator would), and therefor send the orders accordigly,,,,,
as the market has its moods,, you really need to adapt your charts all the time to make sure you are in a tradeable range,, I do that all the time,,,, using a range from less than 10 ticks to 1000's. ,,, just check it out ,, try diffrenet tick frames and view other parts in the chart to find that its obligatory to change frames in different moods or else youll find yourself where your system looses most trades after you have seen it giving you profits probably in a nice trend,,,the fact is that you set the chart to view what was already there in a very nice pattern when what realy counts(in my case) is to have a tradeable range within the last couple bars,,, so I adjust the chart to see a nice couple bars where my indicator will give me faster and more accurate signals,,,,
Im actually working on some code that will hopefully change the tickframe and adjust automatically to a tradeable range. (wish me good luck).
ALL THE BEST
Rafael (spain)