I use the Velbon Ultra Rexi L (now superseded by the Ultra 655 or something), with giottos ball head adapted to take the manfrotto RC2 plate do that I can use it with my peak design RC2 attachment. Buying now I'd just buy the manfrotto 496 head. The velbon tripod is sturdy enough to use with my D750 and heavy lenses, lightweight, fantastic easy to use legs locks (one twist), extremely compact yet tall enough for me at 6'4". OK it's not as sturdy as your dedicated studio tripods but it's more than sturdy enough for every use I've had, and can be used for all occasions. You could probably even take it on holiday.
View: https://youtu.be/CrFyf_UdVLY