I think 21 is perfectly fine for the 3200, 1600 I could see an argument for 16. The 800 should definitely be down to 12. Or why not keep the 800 at 16 but do two heats of 8? The 1600 medley has three seeded heats. The weather is always crap early in the year, it'd be nice to have more athletes get a chance at (hopefully) better weather at the end of April with good competition. The college and pro races have gone way downhill for the Drake Relays, the high school competition is the money maker now. The pro and college hasn't been the same since roughly 2012 give or take a couple years.