I say for a benchmark ; alto 5. tenor 7. When I was a kid i bought a Wolf Tayne 9 from a mail order house. There was no internet in those days. I ordered it because it was the highest opening. When I played through it , I almost cried. I asked my teacher to play through it, and he sounded as bad as I did !!!! My point is that I think 7 is as bright as you need for tenor. Alto is a smaller horn and I think that 5, (six for rock) is as high as I would go.

I have an otto link NY 7 and a Vandoren T77 on order to compare from wwbw. I think you should just try the two mouthpieces you want and see which one you like best. And as long as you are aiming as open as the Link 9, why don't you try the T95? Its very open, but from what I've heard, it responds pretty well. When my lig comes in I will tell you what I think about my comparison of the two mpcs.