I was thinking of ordering one of the new Vanguard Alta tripods and a Ball Head to go with it. I had two question.. 1) Should most brands typically work with any leg set? ( example: If I buy a manfrotto leg set and a vanguard ball head ) 2) If I turn the camera vertical while on the Ball Head. Will the head still pan? Like if I wanted to stitch a bunch of vertical pics together, can I do that or do I need one of those goofy "L" brackets that keep the weight centered? Thanks guys.