I'm a bit lost with oop calling ranges myself and Iv'e been seeking info on it for ages.
In Mersenneary's ebook he suggests a sort of standard flatting range readless. I don't want to hijack the thread or anything but can someone please explain to me why we might open that range to include T3s. I don't have a large enough database to query myself. Hoping I can expand on op's original question and get some decent discussion going about the subject