I use a standard starter on my Mag 91 four strokes. If they are setting on the compression stroke, it won't pull it over, but I just rotate the prop clock wise to compression and then firmly place the cone on the spinner and hit the switch. The only time I've run into problems is with a weak battery. Start the engine a a low speed, the closed or partially closed throttle reduces the compression load and makes the starter's work eaiser. I have used the same starte on an OS 120. It worked, but it is pushing the limits.

One final thought, a worn cone will let the starter slip and chatter. Or a dirty and oily one.

Don