[whereagles]

TWO4BRIDGE, on 2014-October-10, 13:53, said:

Transfers anyone ?
Transfer Advances by Jeff Rubens is another option.

For this hand:
2C = forcing 1 round
2D! = a transfer to 2H which, if simply accepted by partner, could be passed.
2H! = a transfer to 2S which is a stronger than a natural raise .
2S! = natural raise

That is probably the best method for advances. And the higher the overcall, the more efficient it is.

Trouble is, you need a partner to play it. (If you see what I mean...)

[fromageGB]

It's as I play too, but you do need to have an understanding or agreement of what "a natural raise" is. We define a transfer to 2♠ as being the same as an uninterrupted 1♠ 2♠ after adding on the hcp by which you have agreed an overcall could be weaker than an opening, so with two partners where an overcall may be 2 points fewer than an opening, the transfer support is 3 card 9-12, and the direct raise is 3 card weaker than that.

Even so, you still have the decision to make on the 2♣ bid. I see no reason why you could not have 2♣ (non-jump bids beneath the opening suit) as non-forcing, and where you are forcing have those hands jump suit, replacing the otherwise use of fit jumps in those suit(s).