I actually find it more reliable to boost academics and science at the palace bar/restaurant. It's more expensive but seems to have a better chance and can boost both to 80 I believe. But that does mean avoiding classes/books for an extended period of time which also means no Master Tactician for an extended period of time, as well as no hacking. Brainy shortens the timeline for gaining skills of every type via books/classes so I need a VERY compelling reason not to take that even in a Rise play through.The problem with starting very low on Acemical and science skill, with the plan to use Furrys educational system, is that it takes about a year of socializing before you reach those max values.
And in the meantime you can't do academy courses, which prevents you from getting slaves / quests from the academy.
Or you have to accept that you will not get maxed out academic and science skill.
Intelligence I find to be more of an issue. It's harder to grind up to 90+ without extensive use of F5 so I prefer to just start there unless it's a Rise start. Otherwise the only reasonable chance I've found for raising intelligence is to have dozens of extravagant marriages followed by the obligatory divorces for millions of dollars.
Willpower is easy, just turn morning blowjobs on.
Personally, I prefer to grind all of my stats/skills up to whatever cap exists prior to using any relevant books/classes so that extends the timeline further than strictly necessary for most things, but I just prefer to have the option for all of my stats to reach at least 120+. Some of them can't do that if you read books/take classes immediately unless you start with high stats already.
Medical I used to consider low priority since it was pretty easy to grind that out via stabilize/doctor's kits but if you're playing ironman that can be problematic since simetimes they'll just die outright. That means rounding up a bunch of scrubs I don't care about to run through the meat grinder just so I can gain medical skill. So unless I'm doing a Rise start I always take a couple levels of the Doctor skill class now. That doesn't get me to 90 but I can at least start with 60+ so truely capping medical doesn't require me to be a sadistic fuck.