Very interesting!
I just used this with my Rider-Waite - the deck has been very badly neglected as I am awaiting shipping from the US of the Deviant Moon, and I've had this odd feeling I don't want to touch any cards unless they are the new DM ones. Anyway, after about a week of tarot starvation, I picked up the RW last night, and then had the idea to do this today.
Frankly I'm astonished the cards didn't say "oh, so you're bored enough to take out NOW, eh?..." On the contrary, they were extremely clear about wanting to teach me by challenging me, to help me realise there are posibilities beyond my imaginings, that can - no, WILL - lead me to where I need to be!
So I'm really grateful you posted this - it has helped me hear the actual voice of my deck, just when I was on the verge of giving up on it. I think from this I've learned not to be so fickle, and not to put aside trusted old things when something newer and exciting comes along...