See Han's post, which I agree with. While this may be true, partner will be expecting four hearts for a Smolen call, and will bid 3N with AK, xxx, Jxxx, AQxx and similar hands. Using Smolen with a weak 5 card major without the other major is a creative idea, but I'm not sure I like the idea when we have reasonable alternatives. There are problems with the plan, but there are also problems with transferring and bidding 3♦. I was merely addressing the point that you would not find a 5-3 spade fit unless you started with a transfer.