The last hand you described is almost what it was (the HCP and singleton club are correct, 1 extra ♠ and 1 less ♦). Slam makes on the finesse on of K♠ being right.
Really? Where I play, what I do is leading edge! But I didn’t know it had changed (or has it only for top flight players - I’m not one of them and never will be!). Don’t suppose you have any online references for this change so I can ...