Here is a hand I held recently at the local bridge club. My partner opened 1♥, RHO overcalled 2♦ and I held:
|♠||A 8 2|
|♥||K 9 7 5 3|
|♣||K Q 5 3|
The first item of business was to count my losers. With 5 hearts to the king, there couldn't be more than 1 loser, so the hand counted to 5 losers. So I immediately thought of slam, since opener normally has 7 losers. Using the LTC formula, 7+5=12 losers, which should produce 12 tricks. I had first or second round control of every other suit. RHO figured to have most if not all of the opposing strength, and I had a singleton in his suit. If it came down to a spade finesse, it figured to work.
I thought about a splinter bid of 4 Diamonds, but then decided that partner could easily have enough for slam and not have enough to accept a slam try. So I just took the simple approach and bid 4NT, RKC for hearts. Pard showed 2 with the queen of hearts, so I closed it out at 6 ♥. The lead was the A♦, followed by a heart shift. Here were both hands:
Partner drew trump, tested the clubs, and when they didn't split, took the spade finesse, which, as expected, won. Plus 980 was a tie for top as most pairs didn't bid slam. A proper evaluation of my hand, using losing trick count principles, propelled us to the excellent 27-point slam.