well to use trebles will help the plug swim better than with singles is a hard one to call
It depends on the plug
You can crush the barbs on trebles and use them.
along with trebles say on a swimmer. it may have roll with a singl on the belly. You can use a single on the rear But for the most part the belly hook can raise hell with how a plug swims If You dont know how to fine tune it.
I make some plugs that depend on the trebles in the belly for weight. But You could take the same plug and try it and add weight tothe plug.
see it goes on and on.
for needles a single on the back is cool But im sur You would miss fish with a single on the belly.
I have loaded plastic lures and on bombers I swap out hooks for better hooks and some times will go large on the front hook to get the plug to dig.
get the point
So case and point is Your Building custom Lures to Your specs so anything goes if You can make it work and catch fish.