That’s totally up to the tribes what they want to do with their token but since tribes also allow you to earn steem i think it would be a bad idea to use a different timing on their tokens.
I hope you are right - would be a chaos if you use one account for all the different tribes to optimize your votes especially if we use your product mate :-)
There are bound to be tribes that don't use the 5 min window or choose a shorter or longer one, I could be wrong but I don't think the Dtube token will have a window for example, ultimately for best granular control you will need to have to have separate accounts for each tribe if you are intent on the best optimisation, but you can monitor how things go and make that decision when the time is right after evaluating with one account fits all first for simplicity.
Thanks mate yeah - I was trying to find out per Tribe with no success yet so we will see. I know some guys creating various accounts per tribe but this is a no go for me as time is limitted. Thanks for feeding back, much appreciated.