I've only recently gotten into serious cocktail making at home, and am still working on my barware collection. I've had a real problem finding shakers that won't leak. My local housewares store had several makes & models, so I started out buying the one I thought looked the coolest (metallic blue).
First time I used it the thing leaked while shaking. I took it back to the store, where the clerk was curious enough to take it out back and run some water into it, and verified my complaint. So we then tested all the other models on hand (it was a slow afternoon with no other customers in the store), and found that with one exception, they ALL leaked when shaken!
The exception was an OXO, which works fine but is made of plastic so is less than ideal for chilling drinks. Last weekend I picked up another while on a trip to Provincetown, in a serious high-end kitchenware store - this one made by Fliptop - and it too leaks when shaken. Not only that, it has a substantial reservoir capacity inside the filter top, which makes it unusually difficult to clean. Run it through the dishwasher and it comes out full of questionably clean water.
Am I just having bad luck or is this a common problem? What makes/models can you recommend as reliably well-sealed and good performers?