And if you issue a START command, does that always put you at the end of the queue? For example, will you have to wait another full cycle before your masternode payment can be made again? Or will it just go back to ENABLED status and continue your place in the queue?
Issuing a START command will always put you to the end of the queue. If your masternode is ENABLED, there is no need to issue START, but if you change IP/host/collateral address, then I don't know of any way to move the masternode without losing your ENABLED state.