Quote Originally Posted by neuroanatomist
But, for me it's those 'couple of inches' that made the real difference - the 190CXPRO4 fits in my carry-on luggage,

For me too. They fold down to under 20" and that was the clincher for me. I've been very happy with them, and with the deal - Manfrotto is offering it again now (ends 1/31) - $50 off certain sticks/head combo when purchased together.