Alright, buy on release it is then. I'll make sure to leave a review too. =)
In regards to making double watermelon harder, while I personally like it the way it is now, looking at the score submission stats, it seems I'm the odd one out. I will say some of them feel near impossible to get as is, so it may be a case by case thing. Getting it in plusses seems really tough as is, I'm not sure anyone has managed it given the scores. Though it could be due to low plays. I find it weird so few try the other modes, I get the classic is what brought people to the game (myself included) but I've fallen in love with the other shapes too.
Depending on how popular the game is, do you think you'd be able to allow for custom shapes via the workshop? It could be interesting to see what others come up with, assuming there's no easy way to make it an option within the game.