P2 was the worst. The piping engineers really need to work out in the field to understand the frustration a specialty welders has to deal with. No flange break. Endless piping that had to get back purged. All the lines seemed to end up on a 36 in line. SHELL Engineers are top notch. The understand the importance of flange breaks. Working offshore I also noticed it's better to have flange breaks to maintenance in the future when piping gets corrosion. I still have nightmares from those tight 100 percent welds. 😢