Great lists.
Every visual observer needs to hone their skills on close doubles - Apart from many being very lovely in them selves, it's a real test of visual acuity and the ability of an observer to make the best of their equipment and circumstances!
My tip with Sirius B is to make a careful note of where you think it may have been in the eyepiece before looking to see where it actually should be. If they coincide the all is good. This technique works best with alt-az mounts of course because that PA isn't changing in a hurry
. Seeing is everything for that pair!!!