I've been looking for a good price for a used monopod tilt head for awhile. I see good setups, but at prices higher than I want to pay. To be fair the ones that I've been looking at offer more than I need. I don't own large telephoto lenses, so I don't need to pay for a setup that supports them. Still I was looking at used in hopes of finding what I wanted, but, used models are scarce plus not on the inexpensive side when they do pop up.
Then I had some concern about friction on the head since I saw a lot of folks complain about the lack of it on the RRS model, claiming that it was basically on or off, lacking the ability to hold the head in place, but nudge it to or fro at will, before a final lock. I dunno how true any of this is, but in the $200 area used for one with a screw clamp, I didn't want to be disappointed.
RRS actually recommends the Manfrotto tilt head for people like me, albeit with one of their clamps. Then in my research I checked out Acratech clamps, and I was favorably impressed with them over the RRS models because of the built in spring loaded stainless steel detent pin that keeps a plate or L-bracket from sliding out of the clamp in the event that the clamp becomes loose.
So, I ordered the Manfrotto 234 head and the Acratech clamp from Amazon. Then I bought a wave washer for the Manfrotto tilt head lock, and now I have all of the friction control that I need for that head. The bottom line for all of the stuff was under $130, brand new, with the Acratech clamp having a 10 yer warranty. I've yet to try this setup out, but I expect to in the coming days.