I have one. A 12 year old Manfrotto ProB which I love. Yes it's aluminium, but it's sturdy. I recently exchanged the locking levers on the legs since they had cracks. It actually annoyed me since I haven't used it that much. It was delivered with a Manfrotto 3 way head which I have always hated, so last year I stumbled upon a great offer on a beautiful small and in one word awesome ball head from SIRUI. The small E-10. I just love this ballhead. So much in fact that I am starting to look for SIRUI tripods :-)
If you are interested in a small ballhead you are welcome to read my thoughts about the SIRUI E-10(I am not supported by SIRUI and bought it myself). Please bear over with my English since I am not native English speaking. (I always welcome language corrective comments) 😊😉