Do you really need the gadget?
1m - 1♠ - 1N or 2m: 2♥ is weak, and offer a choice between ♥ and ♠
1♣ - 1♠ - 2♦: this is a reverse, and 2♥ would be 4th suit forcing (but you are in a forcing sequence all the same: if pd bids 2♠, can you pass???)
1♦-1♠-2♣: this is the most awkward sequence, and the only one which might benefit by the inverted Flannery. But then you need this exact sequence, and responder with a weak hand and 4♥/5♠. And even here you can always re-bid 2♠ if you can't to give a preference to ♦.
I play 2♥/2♠ over 1m as fit showing: 5 cards where you bid, 4 in opener's minor and an invitational hand. I believe this is more frequent, makes skinny games contract reachable and is quite pre-emptive against opponents.