737, Im doing residential GS now. We are 20ppl in class. At most 5 of us do study, the rest just bristol everything.
If you do 3-4 mods at once its not hard. Know some basics, bristol the rest.
Im not a fan of that (Im not doing it my self!). My point was, its possible and you can get score of about 95% avg. However, once you go for job assessment and they ask you basic question, and expect your level of knowledge to be 95%, as it says on your record... And you are not able to explain why Mcrit is lower then M1... Well, you will have all your licenses, but you will NOT get a job.
You can go easy (stupid) way, and end up without a job... or work hard and you will be rewarded. GL!