Are you tying to a floating dock? Fixed pier with a big tide range?
If a fixed pier with significant tides, you want long bow and stern lines, led well fore and aft, as well as long springs, all with enough slack to absorb the tide rise and fall. If there are pilings alongside, fender
boards may be in order. Similar if you're in a slip that has you tie to pilings. Even at a floating dock, I'm inclined to leave some slack so the lines don't fetch up tight with every little passing wake, and so I'm not constantly crushing the fenders (even though they are fleece covered). Springs should always be long, so that a little roll doesn't put undue shock on the dock cleats