[iandayre]

The description of splinter auctions such as 1C-1S-3D or 3H indicates that the call shows 3+ in the originally opened minor. Actually it is impossible for opener to have only a 3 card minor,since with 3, 4 in the major and 1 of the splinter suit, that would leave 5 cards in the 4th suit, obviously not possible. Most of the time the minor will be 5 cards, the exception being 4441 distribution.

I am not sure whether this description would at times cause GIB to undervalue the trick taking strength of fitting high card(s) in partner's minor or not, but I do know that as written the description is amateurish and sloppy.