I think the best you can hope for with regard to those videos is to try to get a sense of overall sound and relative brightness
If you can find a BKP sample clip for each that is the same (e.g., contemporary metal or hair metal) and compare those that is probably best. You can then go 'okay, X is more bright than Y but less bright than Z' etc. The clips do include the neck pickup, you just need to keep an ear out for it.
Yeah I liked the Cold Sweat neck in that clip too. Basically I would expect the RY neck to be similar but with a little more brightness and a little less of that rounded bell-like quality