Would have been too easy if you didn't hide stuff but more enjoyable - I used MekoStudio to look inside. I did a ToA to get B over the 1st/2nd ball as the timing was too tight (due tot eh low ceiling) if it was an auto pilot.
I am always happy about beautifully designed levels that are not too complex and still offer a lot of fun. Your level is just such an example and delights the Mekorama heart - thank you for it!