Have found a used Kirk BH3 ballhead in (hopefully) good condition and looking to get Feisol legs, but not sure if 3401 or 3442 would be best. Current portable tripod is Velbon Sherpa Pro CF530, which is significantly over 50cm folded, is 3 section, weighs about 1.4kg. My must haves are; a)will fit in checked luggage; b) has a hook for hanging something heavy off it; c) can get very low when legs retracted; d) is stable with Kirk BH3 with 5d2 up to 70/210 F4/100 IS macro with Tripod ring D (when it arrives) (and ideally 300/4 with tripod ring). Actually the Velbon isn't all that bad but plate on top of centre column only 4cm wide so not great platform for larger head. Concern over 3442 is whether legs, when folded back on themselves, will clear BH3 ballhead?