On my little Manfrotto 190 which I use for hiking and when travelling by motorbike, I have a 488RC2 Manfrotto ball head. Probably not 'ideal' for 4x5 (with my Wista metal field), but you know what, it's never let me down. Maybe traveling with the smaller tripod has got me into some good habits as far as being careful to minimize vibration. I do know I'm a little rougher in the studio using an 075.