Interesting note about the plugs. Someone else brought this up a few weeks ago.

From personal experience, I found it very difficult to mount and seat Vittoria Rando 32's and Open Corsa 25's on my A23's with thin tape, and switched to red Velocity plugs. Much easier to mount tires with the plugs, which I thought was due to greater clearance in the rim valley.

Are these a problem waiting to happen?

Not going tubeless any time soon...