I have the G30SF and the G36, so in effect I can have a G30S by swapping slides. I did the swap and could not see that much advantage to the slimmer slide. I have not fired the combo though. Would I buy a G30S, yes if that was what was available when I found the G30SF. In fact I was looking for a G30S when I found the G30SF and decided I should grab it while it was available and knowing I could do the combo swap.