I have BBFW NB SD bars in two of my NAs. I like to support small businesses and Moti is close. Both cars now have a Robbins top with the glass window. The smurf has Nakamae seats which sit 4cm lower but the BRG still has stock seats. Im 6 and dont have issues in either car. I never noticed the welds but probably because I never inspected them. Before I put the hardtop on I always put on the boot cover for longer drives/ car meets etc with no issues.