Ihave noticed that some high end makers are TIG welding their steel frames. Pegoretti offers both lugged and TIGed frames. Is welding and quality an oxymoron or can you get as good a frame using that process as with lugs or fillet brazing? In the 70s(a decade I am hoplessly stuck in) welding was considered a poor process for making quality bikes. Has the techniqe or material or perception changed since then?