Assignments dictate that is a a 50/50 balance (or close to it). Assignments have it as 36-48 vs. 33-47. That is an average of 42 vs. 40. Any setup will be bad when it is 28 vs. 55 in a designed 50/50 event. I am sorry it did not play well.
Regarding second hour and 30 minute planes, etc.; every designer is different. I, personally, prefer the tactical nature of FSO and not just a thematic MA. Therefore, I like the first 60 minutes to be a pure FSO. After that, it can get wild. Others like you to essentially have unlimited lives for 2 hours while others like a 30 or 45 minute mark. And honestly, if I truly had it my way there would be no second lives at all. But, you have to give the people what they want. I hope frames 2 and 3 are better.
I will add that this is why it is so important to update your preferences. According to commitment levels, the Allies should never exceed 48 and the Axis should never be less than 33, yet both occurred in Frame 1 to horrendous results. A long time ago, my own squadron was banned for a month for going over three times in a year. Times have changed, but please keep your numbers accurate.