Globe impellers

In servicing a Hatteras stabilizer and thruster oil cooler, I found a hydraulic driven, raw water pump with an old Globe Blue (model 075) impeller. Vanes intact but pretty much set and deemed in poor condition.
We have no history on this new to us boat. The pump is below the water line.
The oil temp was getting warmer than I expected. The H/E is in good shape and clear.

I have never liked the Globe impellers in fear that the vanes sailed in the pump vs keeping contact with the housing and pumping less.

I have to replace the impeller before EOD Wednesday.

If it's below the water line, always getting water, I don't think the Globe impeller is needed unless there something else I'm missing.

Ready to install a normal rubber impeller;

Any thoughts?

Thx,
rc

Thx, J.
I knew I did not like the Globe impellers from years ago.
You reinforced the vain sailing problem I realized then.

Installed normal Jabsco 1210-0001 impeller today. Pumps water fine.
We will see what the oil temp makes Thursday & thru the long weekend.

Update;
At idle, the standard Jabsco impeller is flowing a bit more water at idle. The Globe vanes were intact but all had a strong set. No cracks in the vanes but I know now (as suspected) it was not pushing much water.

Boat deploys tomorrow, owner will let me know about the oil temp and if any temp changes are observed.
Boat back later next week.

Spare impeller was included. The pump is below water level.
A spare is one thing, servicing that D*** thing was a project.
The old adage; the boat was built around this pump.
I am also disappointed with Hatteras's bonding, They like the hose clamp strapping the green wire to the hard ware. Noticed in many places.
I used the existing green wire crimped eye to a cover screw and eliminated the hose clamp to the bronze fitting jury rig.