Declarer Play: Count winners or losers or both?

When should you count your winners and when should you count your losers, or should you try to count both? Also a look a choosing the Master Hand

[@nirupmalkani788]

Very nice. Thank you.

[@joanmoloney298]

Very helpful

[@marlenachetwynd2925]

Thank you Tony, I played several decades ago and had forgotten the important parts and your video was perfect as a refresher.

[@TonyStawBridgeClass]

Glad it was helpful!

[@user-et9bk5lk7k]

Why we should count winners in notrump contract while counting losers insuit contract?

[@TonyStawBridgeClass]

Yes, this is the exact question I have tried to answer in this video.