Winter project carb rebuilds

Heres dimensions I took of needle/seats

OLD NEW
.7515 Needle .7490
.5785 Seat Height outside (unthreaded part) .5785
.8270 Overall Height outside(no needle) .8130
.9650 Overall Height(with needle) .9475
I went with new needle/seats, dunno if the difference in dimensions will be a problem, but will cross that road if need be later.
I got float level set with gasket @ 5/16" and float drop with gasket at 23/32"

Anyone know if anything goes in hole in airhorn in previous post?
Thanks
Steve