-1
I love elytra rings. Boosts or not, it is a great game. I feel so free doing it...
But I had to go against this one because of the fact that you're getting a free elytra, and it might get in the way of the actual spawn without the need to make a new build for spawn. My first con is fixable, though, but it would be very hard to program, due to /home. And yes, you probably thought about having it on only in spawn world, which is a valid point, but what if the player is wearing a chestplate? The only solution would be putting it back in their inventory, but what about an enchanted chestplate or a full inventory? Its a complicated future, and I'm very sorry to say this.
My only solution would be a separate world for this game. Add it to the arcade! It would give the architects something new to do xD
Yours, (thx 4 the idea)
~Kat