need feedback on clutch vs flex fan and shroud

If I remember correctly the first clutch fan that I saw was on our Max 413 Wedge
An answer about the electric pusher blocking- not much and the clutch fan on mine does not come on till a high temp- and it is really noisey when it does
the pusher really drops the AC temp at stoplights- I've tested it with temp and with pressure gauges on the AC high and low