Linking Accounts

I currently run 6 instagram accounts, all from the one iphone/proxy. Before you tell me this is too many etc., I have been doing this for over a year now. Anyway, what are people's thoughts on linking a few of the accounts together? So that I do not have to log out off each account every time I want to upload! Also, I am botting 4 of these accounts, should I only link the accounts I'm botting or is it fine to mix botting accounts with organic accounts?

Thanks for the help!