I would never buy another one. When I contacted YHM about a different booster the guy said he was going to hook me up. Turned out what he sent was not a booster or anything that I could use.A few people were burned when their unconditional warranty was suddenly no longer unconditional.
They still make good cans for a great value.
I find it really pretty crappy of them. You know most everything the make is on a CNC program. Why not just dig it out & crank one out? I'd bet they have a machine that the use for R&D that is not being used in production.