ML30 G9 w/ HPE 460W (Redundant) PSU: 750W Common Slot Compatibility

[rznkn]

I have an ML30 G9 4LFF CTO (823402-B21) configured with the HPE 460W (Redundant) AC Power Supply option. Sensors show both P/S 1 and P/S 2 operating around 64ºC to 73ºC at the hottest time of day. As a result, the PSU fans are on full jet blast. I'm looking to replace the 460W (503296-B21) with the 750W (656363-B21) for better efficiency and possibly quieter operation. The 750W however is not a configuration option for the ML30 G9.

Still, https://www.hpe.com/psnow/doc/c04111541.pdf only says to avoid mixing of power supplies, and that all power supplies must be of the same output and efficiency rating. That only means I should replace both, which I was gonna do anyway. 

Any other incompatibilities I should be aware of?