Really well put together. I think one of the other issues with the timer being so long is that at 30 mins it's totally abstract. You have no idea how long the game is or how much record you need. So if you finish a level only burning 30 seconds you don't really get a feel of is that a good thing or not. I'm definitely on the side of make jam games easy so people can get to the core of the thing, so it being on the long side is way better compared to accidentally making it too short.