Understood.. Previously I used ck magma which are good but won't last anywhere near as long. Mine about 3 yrs.. Funny, back then I thought THEY were bloody expensive!!I'm only yanking your chain, I've had a look at them online and they look solid - maybe one for the future, but considering I only get a little work here and there at the minute (unless anyone wants to offer me more work) I can't justify that expense just yet.