I have quite a few Lil Skeeters and they work fine. They would be ideal to shoot normal sub gauge ammo in a short chambered old guns. If you look at Sherman Bell's data, they basically are about 1/2 dram less performance (if that makes sense) with black powder pressures. The drawback is that they are 2-3/4 " profiled for the the parrent chamber. The instructions do state that they are for standard loads, not high velocity loadings. If you stick to standard and light trap loads and skeet loads, I have never had a sticking problem.
Their was a brand sold on eBay for a while last year that were around the same price and made from stainless. They worked very well and seemed to hanled HV loads well. Don't remember their name and haven't seen them for a while.
