GB is on record saying some pretty nasty things about the pilots at Piedmont. Us line pilots famously had an FO that on a weekend off, built lines for his base, by hand that we're outrageously superior to the crap GB puts out. GB is allowed to do this because SF lets him... Sad. We're SO close to being an amazing airline but they'd rather have this one little piece of control to keep the misery hanging over us.