Yep, Cedarsmith makes good shafts. Been shooting them for years. Doesn't use the Sweetland method for compressing them, of course. Rather, just runs 23/64 shafts through a compression jig/die to get 11/32 shafts. Mostly, it just compresses the outside of the shaft.
Depending on your spine weight, you can get them heavier than 380-390 grains. In fact, my reason for trying these shafts initially was to get heavier shafts. At my 70-75# spine range, I've been able to occasionally get 11/32 compressed cedars in the 420-440 range, and very rarely even heavier than that.
By the way, these compressed shafts can still be soaked in Watco oil to add another 50-70 grains per shaft.