This is plotting millions of bars? i thought it's just plotting the final result at the end. If so it's a pretty bad solution within profile.c And yes you have to take care of small gaps, like i said i did in mql5. I just was hoping you guys thought about things like this (performance+gaps) already, since many things go into detail very well, but seasonals are handled just in a very basic manner - but i must admit i was suprised that others use my ideas, i developed without knowing that someone aleady uses similar stuff.