Extending Slides

This leveling hubub with air bag Monaco equipment is always confusing. My approach is to make sure the chassis is dead flat and level b4 extending any slides. That way all openings are square, so nothing binds. It is true that as the slides extend, the coach might lean, but I just manually re-level. My plan is not to operate the slides at any time in or out in an un-level condition.
I would dump and re-level only if the site were level. If I need to get the unit low, then I would only dump until the highest bag was bottomed out.