A little advice .
Get a mould that has a lube groove . You never know what going to happen ... be flexible , if a boolit has a lube groove you can :
1.) Powder Coat
2.) Conventional lube / size
3.) Tumble lube
4.) Pan lube
If you only going to have one 9mm ... leave all the lube options on the table ... one day maybe you can't powder coat ...then what ... your screwed , blued and tattooed .
You pays your money and takes you pick ... think about the options .
One day you just might wish you had listened to those who said ...lube groove can be your friend .
Gary