When I first got my Akimbo, I tried it out several times on a 20' climb on a well-used Yale 11.7 Tropical Ivy rope and found a setting that worked well. Later, I tried it on a brand-new, never-used Yale 11.7 Blue Moon and could not find a setting that worked at all. Well, it's a new rope, and once I use it a few times, it should be workable. Later, I tried the Akimbo again on the original Tropical Ivy rope, now a little more worn, and found the original settings did not work as well. I adjusted it and got it working well again. Then I decided to try it out on the other end of the rope which has rarely been used. The same settings were much too loose there, so I adjusted it and got it working better than ever before. Once I took those same settings back to the worn end of the rope, it would not work at all. At the same time I did those tests, I also tried a Bulldog Bone in parallel tests on the same rope sections, and it worked much better on all those sections of rope without any adjustment. Sometimes, it was a little unpredictable, but always manageable.
I think the Akimbo is a clever, beautiful and elegant device, but the functionality is what is most important. So far, I am finding that it has a limited range of adaptability to varying rope conditions. Yes, it can be adjusted as needed, but when I descend from a little-worn section of rope to a well-worn section, I don't want to stop to adjust it, and I want the device to still be predictable and controllable. I have not put several hours of use on it yet, but right now I am very reluctant to even try it in any situation other than a test climb.
To me, hitch cord and a Rope Wrench are still the standard to beat. Flexible hitches are always going to be more adaptable than metal on rope. I have much more time on hitches, of course, but I have never worried about a hitch becoming uncontrollable as it moves from little-used to well-worn sections of rope. It has a large range of adaptability.
I am wondering if anyone else has had similar experiences with the Akimbo. Or do I just need more time and experience to adapt to it?