Thanks Tony,
It seems that the Elkmaster tips must be anything that would not pass for a Blue Knight.
I suspect that Tweeten make tips that are marketed by different companies who put their own brand or name on the box.
The Blue Diamond tips look identical to the Blue Knight, except the Blue Diamond are imported from England.
I got them because the locals like Elkmaster tips, but they keep blowing apart unless you get a good one.
These don't seem to blow apart, and the locals like them just the same.
I just can't stand buying tips and then have to sort through to find the ones that should have been right in the 1st place.I also do not like doing a job twice.
I mostly stock laminated tips, but have the Buffalo and BlueKnight and some milkduds as the 1 piece tips.
For laminated tips, I am going to add the Black King to the range.
Neil