I once saw Charlie Kulp spin a J-3 from not very much at all - as I recall he fitted in two turns and a vertical dive from something that seemed like 300' but more probably 800' or so.
there was also Jeremy somebody or other from CSE spinning the Tomahawk at Farnborough '78 - quite a few turns from not all that high, anyone recall? My memory suggests as many as 12 turns from perhaps 5000'. I think it was the opening of his display.