I think I have more cue holders than Carter has pills.

I have tried most all, here's my opinion, in case you're interested:
Tiger Paw:
Pro: Nice looking, does work on straight edged as well as round tables.
Con: Is still too easy to shift. Adds ALOT of weight to cue case.
QClaw:
Pro: Will not harm your cue's finish, fits easily in case.
Con: Again, too easy to shift.
CueTender:
Pro: Absolutely classy, well made, and beautiful...often with choice of exotic woods to match cue. (I have 2, 1 cocobolo, 1 birdseye.) Will not harm cue finish. Does not shift, even when bumped.
Con: Expensive, but I feel worth it. Does not fit in cue case, however, does come with it's own tote pouch, which I hang off the D-ring on my case.
CueDude:
Pro: All soft rubber construction, collapsible (fits easily in almost any sized case pocket), will not harm cue finish, lightweight, inexpensive (cheapest on the market), will fit almost any thickness table.
Con: It might shift alittle, but needs to be really bumped, but still hangs on to cue...so not much of a con.
I have some others, but they're kinda scattered in drawers in my gameroom...given some away. Hate anything with clips. If I find them, I'll add to my reviews.
I have to say that my hands down favorites are my CueDude, which lives permanently inside my case, and I use ALOT, and my BE CueTender, while not as handy to tote, looks wonderful and really holds on to the cues, as does the CueDude. I am considering the McKune cue holder, as it will fit in a case pocket, but will behave as a clamped holder, or weighted, like the QClaw and TigerPaw...but without the TigerPaw weight, as it is made of machined aircraft aluminum. Kinda pricey again @ 30.00, but that does include shipping.
www.mckunedesign.com
I have more players approach me about my CueDude, because it is just so darn handy and ingenious in design, and they are floored when I tell them they average about 10.00...I found mine for 6.95 at Muellers a few years ago, I think. As to my CueTender, my hubby bought me my cocobolo one from Muellers about 5 years ago for 35.00...they have since gone up to 40.00. I got my BE one off of eBay for 15.00, new...a great score! I am considering selling my cocobolo one, but am undecided, as these beauties are hard to come by, and thy're just so darn beautiful!
www.beadsandbilliards.com has all of the above cue holders available. They are the manufacturers of the QClaw and the PocketChalker. Real nice ladies to deal with. Someone on the net here recently was blowing out the CueTenders, as I think they are no longer being made, as the website no longer exists.
Lisa