As to my knowledge, there is no limit to the number of ticks, only to the number of bars. You can have only 10 bars per second, but any number of ticks.
You are absolutely right. I didn't realize that even with TICKS flag set run() is called on every bar and not every tick. Now, when outputting the prices in tick() function, I see them all with the exact timestamps +/- 1 ms. Thank you!
