It's well worth changing.  Only problem is I need to figure out all my wire speed settings again as it feeds the wire quicker for a given number on the dial now 
 
 
I think I read somewhere that teflon liners for for aluminium wire, and will wear out very quickly with steel.  I could of imagined that though.
Haven't got too much further with the clocks yet.  I've figured out how to control everything I 
need to on the cluster (speed, rpm, and all the warning lights), but I can only make the two LCDs display random cr&p at the moment.
I've made a start sketching out a design for the cluster interface box, but I'm a bit undecided on how complicated to make it, and whether to incorporate some other features.
If I can get it all working nicely I'm sure I could be convinced to make two of them 
