My ESAB Aristo Tech has decided to put its legs in the air. It probably just needs a new set of batteries but as usual it always happens when you least need it. This has brought home the fact that after 8 years of service I should have been looking for its replacement a while ago. The new R Tech Speedmaster PRO HD looks interesting at a sensible price or should I dig a bit deeper and go for the ESAB A60. Has anyone got any experience of either of them?