I hope Mikesch's and Storm's vet visit will go well tomorrow. Maybe Mikesch will jump into the carrier all by himself ! ;) No, I know it will be a bit difficult. Do you try to lift him from time to time for a few seconds ? It worked with Paulinchen (she was a feral farm cat) I picked her up for a moment, gave her a kiss and let her run again. It took a few months but then she liked it.
Yup, it surprises me every time I see the two sets of them. These are definitely classic New Hampshire cat color schemes, and probably pretty common for siblings to carry these these schemes together. And, it always amused me looking at your pictures, that the grey one seems to be the outgoing one "protecting" his/her Tux sibling! BTW -- about time for some new ones from you -- last ones were from January '15!
.....And, now, looking over your pictures, and being reminded of your dear Elliot -- all I can say, is , wow!