Playing this, the meanings of 1C (or D)/2C and 1C/3C are reversed. 1C/2C shows 4+ trumps and 10+ points, whereas 1C/3C shows a weak, preemptive hand and 5+ trumps.
S: x H: Kx D: xxxx C: Kxxxx S: Jxxx H: Axx D: KQx C: Axx W N E S 1C P 3C P/O
ref: bbuff@user.rose.com