I'll take the lightened sprocket.
One tooth less than stock would be 14T. These are
easy to come by. 16T are a bit more scares where I come from.
I have a 14T, 2x15T and soon hopefully a 16T. At the rear
I've got 3x40T, 41T, 42T and a 34T .
Always wanted to try out everything possible.
Love the smell of 2-stroke in the morning.
(Girls do like that)