I played about 10 seasons pre-fuzziness, took some time off, and have played 5 seasons post-fuzziness.
In my first stint, I went the $20M HS/$0M College route after reading about that idea in the forums. My first few seasons (before getting to max HS) I didn't draft anybody worthwhile outside of the top 15 or so (although I did get a low durability, no power but good contact, splits and eye guy who was a high average, high OBP, low slugging pinch hitter extraordinaire - with the 66th pick, he was fun:
Player Profile: Rich Salmon - Hardball Dynasty Baseball | WhatIfSports).
Once I maxed out HS, I was able to land a few surprisingly good players later in the draft (my ML team was doing well at that point, so I was drafting late unless I lucked into a good pick from a type A guy).
A few examples:
Player Profile: Mendy Salas - Hardball Dynasty Baseball | WhatIfSports at 30
Player Profile: Thom Black - Hardball Dynasty Baseball | WhatIfSports at 62
Player Profile: Yovani Tavarez - Hardball Dynasty Baseball | WhatIfSports at 26
Player Profile: Gerald Comer - Hardball Dynasty Baseball | WhatIfSports at 38
Not necessarily studs (though Tavarez is close), but all were very valuable relative to their draft slot IMO - and only possible because I was maxing out HS scouting.
Now I'm going in the other direction with $0 HS/ near-max college, and still having some success in the late first round and after:
Player Profile: Jesse Cashman - Hardball Dynasty Baseball | WhatIfSports at 46
Player Profile: Brett Terrell - Hardball Dynasty Baseball | WhatIfSports at 42
Player Profile: Wilt Adkinson - Hardball Dynasty Baseball | WhatIfSports at 23 (I think he was top-10 worthy, and should be better than a lot of guys drafted ahead of him)
On the IFA front, I've never really gone "all in." Our world is pretty competitive for the best IFAs, but I've had a few decent players from $12M-$14M-ish Int'l scouting and landing players in the $7M-$12M range:
Player Profile: Jeurys Bournigal - Hardball Dynasty Baseball | WhatIfSports for $7.1M
Player Profile: Al Liz - Hardball Dynasty Baseball | WhatIfSports for $12.1M (although it doesn't look like his vL will get to the 70 my scouts projected)