Bombers did not arrive over target with 90 percent fuel either which is what would happen in a T+60
Ahhhh... BUT they would arrive over target less than 200mph. As I said this is merely the best compromise. A performance limiter. Depending on fuel states a light B-25 can outclimb a heavy P-47. Not very historical, no? So in light of keeping all the planning and mission profiles as "up to the CO" as possible, the best compromise would be make the bombers fly at 100% and the results will much much much more closely match the effective combat state of the plane when the enemy engaged them.
As for the rest of your post, we've been over this before. I've been mocked but resources were produced to back up my comments. Funny how they get ignored.
And no, max cruise was not in indicated speed. These bombers were SLOW. Within a number of minutes a headon attack could be made, the fighters could turn around, overtake, line up well ahead and do multiple head-on attacks in short order. Even the older slower Italian rides had NO problems overtaking bombers (B17s but also the slightly faster B-24s) for repeated attacks at whim.
In this game you can NOT catch a bomber stream 99% of the time. You get one chance. Then it's over. Many's the time my squad has sat in 109s topping out at 30K while HEAVY JUGS flew over us at 36-38K and proceeded to bomb the target. Unstoppable. Many's the time the FSO has had bombers that flew FASTER than the planes intended to stop them. Prolonged tail chases ended because bombers passed the "no fly zone" or the disengage point before chasing fighters could catch up.
There's far too much unhistorical stuff regarding attacking and bombing in the FSO. It's become a game of which CO can game the game the most. The pilots suffer because of it.
Simply taking off with 100% fuel won't stop the bombers from climbing. It will only make them decide if they want alt or if they want time to manuver. Top speed will still be very fast but it will keep them lower. Or they climb and risk getting jumped at auto climb speed. You can still cover a sector in 5 minutes at 300mph TAS. That's plain math. So a target 5 sectors away only needs 25-30 minutes when you are at full speed. That's half a map and back and plenty of time to spare for additional climbing.
My suggestion doesn't limit anybody except the folks that like getting bombers to and from the target unescorted and having them survive and often get the highest kill streaks of the frame. It's happened before. My suggestion merely seeks to curb such events.
So why do you want to defend bombers flying 30k+ in FSOs at over 300mph TAS, higher than they historically could fly and faster than they historically could fly?