Here I have noticed the tail dragger will watch for you and give you the go around motion with his hand low to let you know it’s cool to go by. In a large group there is always a message relay system set up. Like Mega said, do something to grab their attention then with your hands and or turn signals give them an indication of what your wanting to do. Most of the time they will relay the message forward and the ride captain will signal back the all clear to allow you zip past.
As for the latter… yea like Mega… pull over and enjoy the scenery. Don’t really want to be confused with them as you never know what they are riding from. Guilty by proxy is still guilty in a lot of LEO’s eyes. Alternate routes are a good choice also.
Check with your normal ride group on what you need to do as a tail dragger and what signals may be involved with it. The group should have something set up to allow the group of whats about ot happen just in case the ride captains timing is off and the faster rider has to make a quick duck in on the group .