Codo, on 2013-July-17, 05:30, said:
If I start with
1 ♥ 1♠
I can find a 4/4 spade fit, but after some response, particulary 2 ♥ I have no convincing way for a forcing heart raise.
This is something of a double-edged sword. If we start with 1
♠ and partner bids 2
♥ then we have lost an easy GF but gained the knowledge that partner has 6 hearts. There is something to be said for LOL-Standard here (1
♥ - 1
♠; 2
♥ - 4
♣ is obviously RKC Gerber). For a truly convincing auction to 6
♥, you have to discover the slow club lower somehow. I would be interested what percentage 7
♥ is - I imagine some pairs would be in it at a large high-quality event.