Let's go through this logically. I'm posting roughly 500 comments a day. In order to effectively use delays we have to think this through. How many hours are there in a day? 24. How many seconds in an hour? 3600. So in a day we have 24 * 3600 = 86,400 seconds. That is THE number. So now, in order to figure out how to use delays effectively, we do 86,400/500 and we get ~173. So that number is telling us that every 173 seconds, you should be posting one comment in order to get to 500 in 24 hours.
So that's all the information I'll give you. The rest is all up to you. Choose your own intervals.
I'm not trying to be a jerk or anything, but giving my settings to someone just causes accounts to get flagged, and no one wants that, so I give guidelines, never full settings.
Hope this helps.
Do you use the same set of comments all the time, or do you switch them out every few months?