Unless one has flown 121 and 135/91K then they will have a hard time comparing. I've flown both and can compare both.

Turning left and sitting down after entering the door is a great way to go. The new 117 rest rules would serve well across both sides of the industry. Knowing only the day you start and end your work week, not knowing the start/end times of the work days in the middle is tough. Not knowing the length of the duty day is tough.

If there is such a difference then why not make two different standards for ATP to serve 121 and 135/91K segments? Simply have an add-on requirement if one goes from 135/91K to 121 world.

Makes no sense, exacly my point.

Both ops fly into the same weather, have same AIM to follow, same medical requirements, same training standards (AQP), get violated the same, have same stablizied approach requirements, fly into many of the same airports and many more that former airline pilots are shocked jets fly into...07FA, KTEX, KVBT, TUPJ and KUDD come to mind. Not to mention the countless non-tower airports with the wild west flying seen sometimes.

Blending of some of the regs and rules would be a welcome benefit and an improvement on safety. As would a required retirement age in the 135/91K world.

Point is if the feds wanted to make flying safer the could. They have separated 121 world from boxes and pax, why? Preception of the traveling public and over the safety of the crews. Remember, this is the same FAA that allows a <24 month old kid and let's say weighs 23 lbs to lap sit while a woman holding a 4 lbs purse in her lap to stow under the seat in front.

We can do better on all fronts of aviation safety.