With some partners, 2
♠ would be a big overbid... with others only a mild overbid...
I know that it is not standard to call this a game force bid, but think about it... construct for me an auction in which this 2
♠ call is NOT forcing to game in practice. After all, it is standard to promise another bid, and you cannot rebid a 5 card suit, so what bid can you make over ANY non-game/non-raise call by partner? Does anyone think they can/should pass 3
♥? Or 3
♠? Maybe in Acol (I don't know) but in std or 2/1? Maybe it's possible, but it isn't where I play
So I think, strongly in some partnerships and to some degree in all 2/1 and std partnerships, this is a negative double.
Make it a 6 card suit, with equivalent strength, and in some partnerships I would make the call... expecting to bid 3
♠, non-forcing, at my next call.
As for extricating myself from the frying pan I placed myself in, I agree with jumping into the fire with the misleading 3
♦. After all, the odds are I can pass his next bid (or raise 3Major to game). But I am still worried that he may take me for a better/different hand than I hold.
'one of the great markers of the advance of human kindness is the howls you will hear from the Men of God' Johann Hari