I did this in the 2nd year of the dynasty. I went after 20 recruits (2 and 3*) and spent 1 hour a week on 10 of them, the next week spent 1 hr on the 2nd 10. When I lost 1 I would go search for 3* recruits that have 10 schools remaining. During the year I got four 2* recruits. This is now on All American recruiting level. The problem with this is that my team is so bad that I have very few A or B pitches. So spending 6 pitches on one kid isn't always fruitful.
I really wanted to be successful on the Heisman recruit level. But as I said earlier I gained just 1 recruit in dynasty year 1. I lost all my SR's, and walk on's filled the roster. They are all rated 40, some starting. Using Playmakers sliders I went 2-10 in my 2nd year of dynasty, after going 8-6 in year 1. I have never been that bad, not even close.