Indeed 1♥-1♠-2♦-3♣ is the most "ugly" 4th suit forcing auction. IMO there are several solutions like ART 2♣ response with BAL hand to creat a GF situation.
We can give up 2♠ rebid to save space for further development as well. Thus 1♥-1 ...
Regarding the age limit, I'm pretty sure in the 1st WMSG 2008, U28 was defined as born in 1980 or later. You can find it in WMSG home page. http://www.worldbridge.org/tourn/Beijing.08/Information.htm
You can infer participants born in 1984 should be allowed in ...
completely agree...we have to admit the world is not so perfect. At the table, each pair has its own style and winning model like a formula which sometimes brings win but sometimes not. Whatever in pair or team, chemistry is a key factor in the formula. Basically the team ...