Yes thank you. After rolling my own I've come to love sovereign feeds. It was helpful when I tried to do the LIT stuff.
And I've since learned (none of this was obvious to me) that sovereign feeds does the valueTimeSplit.
But it was still pretty frustrating to find guids and urls and the like. None of these tools care if the guid is correct. So I copied in the wrong guid and it broke. Even sovereign feeds won't validate this I'm pretty sure.
I'm trying here :) I'm just sharing my experience as I new user to this and sharing what's confusing and what's frustrating.