I am bumping this thread due to today's newspaper column by Frank Stewart.
http://www.baronbarc...4/September2014
Same type of situation, except now, after studying this and the previous column, I am enlightened.
Six months ago, I'd have rebid 2 Hearts, and I'd do it with confidence.
Note that the poll agrees with me. It currently shows that 80% of forum-participating BBOers would rebid 2 Hearts.
As previous posters have pointed out, there is an opportunity here to show strength or weakness. That is, ♠♠♥ shows a weak opening hand. ♠♥♠ shows a stronger hand. It all comes down to how you value the opening hand. I think a reasonable way to look at it is if you hold a 6-card suit and a 4-card suit, and have the strength for a reverse but not the opportunity, you must communicate your strength in the above manner. And if you and your partner agree to that, you must then show your weakness in the above manner as well.
Today, I'd rebid 2 Spades. And tomorrow too.