First things first. Thanks to all on this site. I found everything I need to make my choices based on good info instead of "wing'n it". I've got the wifeset up with an assortment of kr808/510 equipment that she's thrilled with. I settled in with a $25.00 Boge Leo xxl cart system. I love the easy drag and pass-thru function. Over 30 days analog free and no regrets or cravings. Not bad for a 35 year smoker!!