Thanks for all your replies guys
Now I'm off to try them on some C4, some electrical work, reassemble a SAK and crack some pistachios
I think I'd rather have them than not although I can see why there is not a lot of love for them. If I had the skills and knowledge a head transplant might be fun
I imagine an ST300 head wouldn't work [not that I have one], it would need to be within the Wave range i.e. Charge, Wave, Surge? I'm sure it's been done by many folks here