Would it be possible to add a button to the mechjeb AR202 and the other mechjeb parts, to disable the mechjeb module when it is not needed anymore? On large vessel or in large saves, mechjeb induces a lot of lag. For some stuff mechjeb might not be needed by the user, while it will still induce lag when using the vessel. Manually adding and removing modules in a persistent save is a little bit troublesome.