thats good advice.
there are 9 messages you can have when a recruit is considering 1 school, these represent 2 levels of effort. the lower level has 6 messages, the high one has 3, and they all mean the exact same thing. the 3 high ones are the very solid, *very* etc type messages.
when 2 schools are being considered, there are also 2 options, although im not sure how many different messages there might be for it. basically, its close, or its not. however, FSS shows close even after you get the "far ahead" or "far behind" (but still considering both) scholarship messages. so close doesn't really mean close by scholarship message standards.
when 3 or more schools are being considered, it will tell you which are primary and which are backups. i think that is similar to how it works with 2 schools - it compares everyone to the front runner, and if they are within a margin of closeness (again, more than the range of scholarship messages - this was obviously built for d1), it will say something like, player X is really interested in school A and school B at this point - schools C and D appear to be fallback options.
thats pretty much it. if you want to research the exact amount of efforts it takes at various levels (and it varies by divisional play, sort of), to get a player to consider you tightly or loosely, that would probably be worthwhile, but i havent done it myself, i just have some modest approximations.