Well with out disclosing too much information, I’m between 27-34 work for skywest, and have done 121 for a few years now. I bid 4 days because they pay the most block per duty period. Our PBS will schedule you 90+ hours credit each month, so higher block will net more days off. Unfortunately our trips are very inefficient these days, hence less days off. I would give my name etc, but I don’t trust our company because I support the ALPA drive and am very pro union.