In every book and program I have it says to count your HCP and add them points for length at the same time and bid on that basis which I find works pretty well. However I have been told off by some players who say You don't count length points when opening NT when responding to a NT you don't count length points You only count distribution points when you have found a fit (I thought you were supposed to count short suits only when a fit is found) When deciding whether to open a weak 2 you only count HCP. Recently a partner had 13 points (including 4 points for length) but said she opened weak 2 because she only had 9 points. This led us to end up in the wrong suit.