Any tips for taming a wild 5E3?

[slim66]

So, I built my 1st 5E3.  I used P-TGP-002 PT and a Hammond 1750-H OT.  The 1st filter cap is 33uf, and the power tube cathode resistor is a 10w, along with a 50v power tube bypass cap.  The rest of the circuit is standard.
     Going into a Celestion G12M 65 watt speaker, this thing is too loud with the volume at 1.  Also, like most 5E3's, it starts grinding at @2, and just keeps getting more grindy after that.

     What can I do to tame it a bit?

Thanks, 

Slim

[isaac_teller]

If you have a 12AX7 in V1 try a 12AY7 instead. If still too much' try a 12AU7.

[pdf64]

Voltage survey?
Volume pot taper?