hi all, i've recently converted my 180 mono migatronic to take a euro torch. with the old original torch on no. 5 setting i could weld up r.s.j's but now on no. 5 i can only weld much thinner metal! the new torch is a metre longer than the old one. would this have that much effect on the welding power or should i look deeper? i.e. have i not installed the conversion kit properly?