Your blowing looks perfectly normal from how this forms. A lot of this is how different metals and grades of silver react to the acid in saliva. It doesn't hurt anything. If it bothers you with the headjoint removed from the body you can use a silver cleaning cloth or even a bit of a good silver polish and it will come right off. Just be be sure to clean it thoroughly after doing that, you don't want any fibers or polish getting anywhere near the body and pads. The few times I've thoroughly cleaned my headjoint I usually take the cork out, polish, then wash and rinse it well then put the cork back. I have done the lip plate a few times without taking the cork out but you need to be bit more cautious doing that. But, seriously it's nothing to worry about and I wouldn't bother with it between COA's unless I had a performance and wanted it looking it's best. Some metal types are just more prone to this and it depends on the individual playing and how their saliva reacts with it. It's nothing you're doing wrong and that's a very good direction it's forming indicating you're blowing is spot on.

@Antonio Herbert First off when I practice these it's always as it is. Then when I get refamiliarized with them I practice as I hear them. Generally, that's the same as written but as a performer I think we can go a bit beyond the page and play what makes the most musical sense.

Thanks Luke, nice to have a new platform!