Airship Guide

[Bloody]

It is not a bug, and each phase you can achieve 100/100 quality.

I've gotten 100/100 quality in phases a single phase before. The quality gains are completely random (yes, averaging 14 quality per turn in is awesome) but other times I'll cap out like 30 quality in a phase. It is completely random, but I will say that the close to 100 you get in a phase, the higher chance of excellent or outstanding progress (which in turn reduces your chances of a repeat because of the 1/3rd or 2/3rd reduction in materials needed gives less chance for quality boosts).

Each time you turn in items for progress, you have a random chance to gain a variable amount of quality, anything from 7-18 average. Quality of materials turned in has no effect. Level of materials does seem to have an effect. For example, turning in Varnish may get you 7-12 progress, but mythrite ingots may get you 18-20. I've gotten as high as 36 quality off one turn-in before, and I've also done 12 turn-ins with 0 quality gain before as well.