Yes, I read that thread...here is my take "I have take a size 10 glove, so I guess a medium-large hand. I have no problem shuffling large cards like Druidcraft. In fact, at times, I find smaller cards more difficult to shuffle.
My perfect size would be between that of Druidcraft and the RW deck.
I say 'each to their own'...some like em big, some medium and some small".
Personally, I love borders on tarot cards, and yours sound Divine!
It is nice to have the choice. For those who do not like borders or find the card too big, they have the option to trim. But, if you go without a border, there is no option for those who like a border.
I think a border adds a lot to the visual appeal of a deck, and it is like looking through a window onto a scene. When used in meditation, the window can be used to 'enter' the scene.
~ C