Thank you for sharing your thoughts. The PD kickstarter campaign is over and I did not sign-up. But many others did. PD raised $12million. Pfew. Good for them. They indeed have some interesting products.
I did not like the deadline pressure (you could also say I should have started looking sooner ;-) ).
In a way, it is fun to start a quest for the "best for the buck" and learn about stiffness, damping, etc.
Regarding lever vs twist locks: I did not like the twist lock system of the travel tripod I used to use. It was far less reliable than the lever lock. However, that might have been an issue of that model so I will definitely not exclude twist locks.
Leofoto seems to offer some excellent tripods, especially considering the price but I do not like their blatant tendency to copy others (RRS, Gitzo). But I will look into the LX series (and compare it to the LS series).