Hi alphafox14,
You can... but there's risk. Unfortunately, most of the time Day 1 has a standby element beginning quite early. (04:00z). This gives Scheduling "flexibility". You can risk it but I wouldn't do that too often or what many do, position themselves at own cost to their gateway the night before. What is possible is that on Day 6, you can go directly to your home airport so long as it's cost effective to NJE.
Eg. You live near LEPA. But the gateway is LEBL. It is risky to catch an early flight on Day 1. So you can position yourself to LEBL in anticipation. Day 5 the tentative is available. You see a reasonably priced ticket to LEPA instead of LEBL, you ask if you can do that instead. If there's no conflict etc, then you can expect that. But! The one constant with NetJets is change.