you can also use any standard size tennis ball. that one helicopter at the top right comes in close from time to time, but even hours later the other helicopters out of the frame never move or come in any closer. so which fact should chevy use in deciding whether he should shoot today? i enjoy winter, too, but spring is so full of delight! we perform long and short form comedy during our 90 minute show (including a brief intermission). i dont know what to do at this point as the update really didnt fix anything. 