Look at most of the pitchers results, they're much lower in February than the summer. First time my son went as a Soph, he threw 76 in Feb/March and I said, "I just screwed my son" because now that low number was public info. Went back in July and threw mid-80. It was his July outing that got him invited to Future Games.
If I were to do it again, I would skip the early workout. In fact, he's invited to their Procase next month, and I haven't signed him up yet, as he's just starting flatground throws and I doubt he'll have much velo in 4 weeks.