ABS should not require any extra steps to bleed (actual a whole lot less than a non-ABS 240) unless the MC is replaced or the reservoir was run dry. Even then, at least on the 9-series (I have never owned an ABS 240), the ABS unit is below the MC so all that has to be done is to bleed enough fluid out that any air that did enter the braking system upstream from the ABS unit is purged.

ABS also should not cause premature rear pad wear. Does the ABS commonly activate on your car? Believe me, you will know if it does.

Two thoughts:

You did not mention bleeding the rears but you did mention it on the fronts...why?

Are the "ways" on the rear calipers rusty enough the pads are not retracting when the pistons retract? This would cause rear brake drag and would show up in poor fuel economy but unless you are calculating it every fill-up, you might never notice.