Actually all the microlights I've spun (in flight test programmes) have been as benign, or more, than a C150. BUT in my opinion the rudder central recovery is important, to avoid occassional attempts to kick into a spin the other way - there has always been more than enough rudder power to recover in half a turn with central rudder.
Doing it without doors mind you, once or twice, I'm in no great hurry to repeat - but required in programmes for aeroplanes with removeable doors.
G