Flight Skill, Sort it out! Options

[Aerospider]

Does anybody have a good houserule for the Flight skill? I have issues with the (mechanical) parrallel RAW draws with the Running skill.

For one thing, the critter is flying when using either speed value. So can they use this skill at the 'walking' rate? I assume not and it's just been poorly labelled, but it bugs me none-the-less.

More importantly, why is it so comapratively ineffective? When sprinting you gain 2 metres in a single combat turn per hit, which is a little weak for a single combat turn but can conceivably make a difference and over several turns will add up. But have you seen how quickly most flying critters can 'run' normally? I've just been building an eagle shapeshifter and assumed I would be interested in the Flying skill, but with an 80m per turn base rate I can come up with hundreds of BPs-worth of expenditure I'd rather lay out for (especially considering that fatigue may be an issue). Dragons can make good use of it purely by virtue of their insane Strength ratings, but pixies and spirits also don't have a good proportional benefit. Would 4m per hit be reasonable?

And why can fliers only 'sprint' when diving?

And shouldn't diving provide its own bonus already?