To be honest I think that all depends on the knife you'd like to have as the end result of your moding, I mean sure you can get like 2 or 3 GW size knives out of BWM, but is it worth in work time, not sure. I sometimes get the ideas for a nice mod just by looking at the knife I got, or by looking at pictures. For me personally the Steel Hearts are closest to what I'd want, matter of fact not a lot of work has to be done to them to make 'em what I want. Some of the custom shop models are exactly what I want, and start thinking if maybe I can mod my knives in similar way.
But for me the mods aren't worth the time and $$$, as for the most part I'm happy with the Busse's as the come. I'm just waiting on a double edged busse, but something tells me its not going to happen.