That would be pretty awesome if that were still possible today. I'd love to see even the top 3 or so from Div 2 and Div 3 invitied to the Div 1 meet, assuming they scheduled nationals on different weekends. Almost 0 chance that they'd contend for the win, likely just around the cut-line for AA status, and would do nothing to take away from the Div I race. It'd also afford a bit of publicity for the lower divisions and that'd be a good thing. I thought it was awesome back in 1998 when they had Div I and Div 2 both at Rim Rock in Lawrence on the same day.