measuring? - playing surface or?

[Bataboom]

When measuring a conga do yu measure do yu use the playing surface to determin size or overralll width of the head and rim?

[ABAKUA]

If you mean measuring the size of the head it the playing surface. ie top of the barrel where the skin covers it.

[Isaac]

The measurement is usually the diameter of the playing surface
plus another 3/8". ie. the LP standard sizes
of 11" , 11.75 Conga, and 12.5' Tumba may measure
3/8'" less. ~ ISAAC ~