Is the higher the better?

[felixckw]

Should I set my CAP at a altitude higher than that of enemy escort? Or Should I set my bombers at a higher altitude than that of enemy CAP? Thanks.

[anarchyintheuk]

Higher is better in both cases, although your bombers accuracy will suffer.

[felixckw]

If I set the altitude of CAP at a higher level, will it lower the chance of the CAP to catch enemy bombers?

[CMDRMCTOAST]

It allows you to dive down on the enemy with greater speed than
the aircraft is capable of on it's own power.
It is a solid tactic too try too fly higher than your enemy and also
you want your escorts to fly higher than your bombers on strike missions.