This has been a really educative post @accelerator as many of us didn't know how to use upvote automation.
I took advices given by @rycharde about this tool and consider it has worked a lot (although I delegated some SP and my upvote value is really really low LOL).
Post resteemed so that all my followers learn to use this amazing tool!
Thanks very much :-)
I'd aim for 100SP so that each upvote is at least a cent - but it's your strategy and the important thing is you understand what you're doing, then form your own opinion!