Houser/Sellmansberger MP rims for "dumb" me('s)

[zhengquantuba]

I just purchased a Sellmansberger Solo with #1 shank and #1 rim. Best MP ever. However, I am having trouble figuring out the various rim options. I'm color-blind, which makes the tuba MP spec sheet useless. Can someone dumb it down for me? I see 26 rim options. I understand the measurements but the comments are not totally clear to me. This is page 2 of the Spec. sheet. It seems like this sheet might work very well for someone who already possesses some MP knowledge. I apparently don't. I primarily use Curry DH MP's but now I'm considering switching to Sellmansberger Solo and Symphony.

[zhengquantuba]

Will do!