Thanks Daryl,
I would like to try Tammer molds, they looks very good and I like the handcut spru, balls looks rounder. Considering shipping cost $10.- is not much of a difference.

I have search at local range but could not find round gas check wads. It looks like the ammo used here is different.
A friend have some (5000) wads that have round gas check but Im not sure if they will work. I will try them but I suspect it can colapse when shot.

If it do not work, I have 16 Ga wads with round GCheck that can be use into a normal (flat) 12 Ga was.
I think this can work.

Thanks
Martin