Should You Invert Your Subwoofer? Is It Even Worth It?

I invert my 18” Skar subwoofer to see if I get any benefits. Before I invert my sub I add more bracing inside my subwoofer box to really make it sturdy and not flex. Do you guys think inverting your subwoofer is worth it?
18" Subwoofer Specs:
Skar SDR 18 Dual 4 Ohm Wired In Parallel To 2 Ohms
5 Cubic Foot Box Tuned To 22hz
Powered By a Power Acoustik 900 Watt Amp, But It's Only Getting 650 @ 2 Ohms As I Plan To Wire @ 1 Ohm When I Get A Second 18.
Amp Powered By a 650 Watt EVGA PSU
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