I purchased this product to replace carbon cages I was using because rear bottle would occationally bounce out. Purchased King Cages and new Camelbak bottles. Bottles lean sideways in cages and when adjusted and turned in cages will continue to lean when on rough road.
You may need to bend these cages a little bit to get a snug fit around your bottles. I use the King Stainless Cages and the Camelbak Podium bottles without any issues and with minimal marking.
If you bend these cages and continue to have ejection and leaning issues on rough roads, you might consider some very tight fitting cages like the Velocity Thermoplastic Bottle Cage. As an added benefit, they're about 10g lighter than the King Stainless Steel Bottle Cages.
Western Bike Works
I have two of these installed on my road bike. They are hand-made in Durango Colorado of American-sourced steel by a small business. If you are not carbon-obsessed, this is the way to go!
I was tired of aluminum cages leaving my water bottles looking like they were ready for the trash heap. These nice stainless-steel cages don't leave marks, they hold the bottles well and are nice and light. A bonus is that they are made in the US. Sure, they cost more than cheap aluminum cages, but their quality is worth the extra price.
I was looking for a couple of classy looking, functional cages for my tourer (Sala Vaya 3). I looked at several other stainless models and I almost bit the bullet on the titanium cage but I'm glad I didn't. This thing looks and works great. It's easy to use yet the bottle stays put. I have done many fast, bumpy descents with it and the bottles didn't budge. I like it so much that I'm getting another one.
Although a bit pricier than cheaper aluminum cages, these hold a firmer grip on bottles and also don't mar the outside of water bottles. They also have a superior mounting design that makes them rock solid on the bike. Plus, they are pretty light compared to other steel cages. Highly recommended if you don't want your bottles to fall off on bumpy roads and conditions.