Sorry in advance if this goes on a bit. I would like to understand the best options re 151 or 160, and I don’t imagine the MM counter staff are the best to advise. As far as I understand, both sets are basically the same spec, the difference seems to be what you get with them. I could get a 151, then buy another regulator for refill bottles (£?), and get a CO2 bottle (£?)- I think this would do me for most jobs (3mm thk and up), and I could use disposable mix bottles for occasional bodywork and light stuff. Or, I could get a 160, get a CO2 bottle for supplied reg (£? same as before), then buy regulator for disposables (£?) plus disposable mix bottles when required. If I understand this correctly, how do the costs stack up, with a 160 being about 30 quid more than a 151? Or, might I be better with a 160 and get mix refills (quite a bit dearer I believe) and use them for everything? I don’t want to get kitted out and then wish I’d got something different. Arc seems so simple! TIA, Brian