[suicideneil]

Is that geared for the same speed or more/less?

I think part of the issue here will be that you can get the same runtime with a lower kv motor + higher voltage and lower mah lipo, but to see an increase in runtime you need to keep the same mah capacity & lower the current draw ( HV and lower kv again ). Having a lower mah will reduce weight but lessen the advantage you get from lower current draw = same overall runtime.