I would agree with the suggestion of trying a Flexshooter Pro to serve as a travel gimbal. I’ve had mine for almost 5 years now and ditched full gimbals soon after getting it.
The main drawback of the Flexshooter is a more limited range of movement. It hasn’t bothered me because I don’t prefer to shoot birds flying directly overhead. Similarly, it doesn’t point straight downwards. The other drawback that I think may bother some is that there is no panning base. So once level, if you try to pan, you may lose your level. To remedy that, I’ve added an RRS lever panning clamp.
The main benefits are of course the smaller size and lighter weight combined with a built-in leveling base. As another posted mentioned above, it can stand in quite well for a ball head, but for serious landscape and maybe macro, a dedicated ball head may be preferable. As for ability to “lock down” with a big lens, I can say with confidence that there is no creep once the ball is locked, even when using a 600mm prime. In fact, I’ve even mounted dual rigs in very windy conditions and was very pleased with the stability of the Flexshooter.
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