Exactly, couldn't agree more! I Especially like your statement about expectations escalating as you get better, so true. It really is an endless cycle, and that's just another reason I love it so much - no limit to how good you can get, always room for improvement. Also something I probably should have added in the post is that when you finally solve the puzzle, it's one of the most rewarding feelings ever. The tougher the struggle, the greater the reward in my opinion :)