Superpilot
What I said is every take off has different initial cleared altitude. It does not govern the OEI acceleration. RTOW charts show minimum and maximum acceleration altitudes. You have to accelerate within this otherwise you will exceed ten minutes time limit on take off thrust. You cannot select MCT before you clean up otherwise the climb will be poor and even acceleration to GD. This may compromise obstacle clearance. You are mistaking it with OEI GA altitude. OEI acceleration altitude is not applicable to GA. Many airlines climb to MSA during GA.