I use a Manfrotto 055 with a manfrotto 029 head for 35mm and 6x6. When using 5x4 I fit a Linhof pan and tilt head with a manfrotto converter plate 120. This converter plate changes the thread on the centre column from 3/8 to 1/4 inch. I have not mounted My Kardan GT in a strong wind yet so am unsure how stable this combo will be in unfavourable condtitions.