What is it .... #4 copper washers used for shims ????
you should pick up at least 4 of those too while your at it as you may need them. or just run to the hardware store for those...
I really didn't notice any difference in the running due to the Main jets just a tiny bit leaner... from 98's down to 95's is a very small change... I expect to see a change in plug color, but it won't be much... I really think the big change came from the shims.
....
when I was porting and polishing 2 strokes in my younger years it was not uncommon to go 3 to 4 sizes due to all the material I removed from the ports
and the engines were like a completely different animal ! though the big changes were adding tuned pipes ! that really changed the machine !
...
Bob....