Hello all. I am new at this but have some soldering experience. I want to recap a few pieces on my Soyo Dragon and am considering buying a used Metcal SP 200 station. Anyone heard of them and I think it has an internal ground fault or something. Is this OK for working on boards or does there actually need to be a physical ground connection to the board for safety and to be sure not to fry the board? Anyone with experience please chime in or suggestions for a different station would be appreciated. Thanks.