Hi Andrew,
thanks for reply. as I said Im new on using flyer and actually new on using EX3 as well. so Your suggestions are very very helpfull. in this time I use ex3 cca 80% shooting by hand, not tripod or steadycam, so Im a little bit worry about weight of baseplate. ex3 is heavy for handheld shooting even without additional eqipment like baseplate... but I would prefer baseplate placed only to the bottom of camera, not to bottom and back part. (do you think that increasing of stability using baseplate conected also in back part of ex3 is so significant for using ex3 on tripod?) probably the best solution is make it by myself to fit it to sledge of flyer and to meet requirements of manfrotto videohead 501 as well. smart craftman can do it - if not, i would need to wait for shipping from canada...
Mario