Gee I wonder why I made some words 'bold'.
There is no reason to "ramp the speed down". IMO SS says that for liability purposes. That way you don't hook up an SPT over speed and blow it up. I never turn my SS's to slow when turning them off. There is absolutely no reason to do that if you pay attention to what you are doing.
Made sense in 1950 with low powered homes and 3/4 HP greenies.
Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E(SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange