Agree on the Ivies. I'd been led to believe that their recruiting timetable was closer to the academic D3s, and were still recruiting for 2018 in the summer of 2017. I was wrong about that...Ivies were for the most part done by the summer of 2017.
For 2018 MIF positions we found IVY's had their preferred picks going into July (rising senior summer) with a few exceptions. Which brings me back to to a comment I've made a few times on various threads this past week. If a position player is determined to play Ivy, pick the top Ivy's you're interested in and get to their Fall Ivy (preferably) or Winter Camps (you won't be in top form). If the player has D1 tools and has a good weekend he'll have been watched by all the coaches and they'll all know him by name. Then follow up with AZ Fall Classic, PG Academic, and the November HF or ShB Camps. You can develop momentum going into the rising senior summer, also, it's easier for a kid to call a coach if he's been to their camp, especially if he had a good performance. It's also much easier for a kid to call the coach to tell him he'll be at the upcoming AZ Classic or November HF or Showball, as well as asking for performance feedback. If the kid was liked at the camp, coaches will have him on their shopping list when they go to AZ, PG Academic, HF, or ShB.
If you think about it: if the Ivy's have 90% of their position players committed by Sept 1, who are they looking at between Sept and Nov? Last minute picks that backed out of Ivy, AND Pitchers to build the next recruiting class. It's hard for a position player to get noticed at a large venue like HF or ShB because they're not necessarily getting many balls hit their way when the coaches are watching (especially the Ivy coach they want to watch). Strong measurables from the testing portion will put you on their watch list during the two day showcase. If you only stick to large showcase events, it can take numerous events for the position player to get noticed. The coaches will need to see how the player matches up in a real competitive game against advanced pitching.
The top D3's academics have a good idea which rising senior players could help their program after summer showcases. They're dialed into those players who've responded aggressively to an email or phone call. But the D3 coach still has to be cautious at this time, because their top targets are still vying for a last chance with an Ivy or Patriot school. Recruiting their top picks in time for ED1 is their challenge.
(edited a few typos)