[LCC] Ameritron AL-1200 - power supply repair/upgrade

[w5wz at w5wz.com]

My AL-1200 is not putting out the power it used to.  I've noticed that 
HV at idle has sagged to 3,150-3,200 volts, and at key down drops to 
2,850-2,900 volts.  About 5 years ago, I replaced the HV filter caps and 
bleeder resistors.

The factory design uses 8 caps, 270mF @ 450v, 85C (8x450=3,600)  I've 
found an upgrade board that will use 10 caps (10x450=4,500).

https://www.ebay.com/itm/W7RY-Ameritron-Amplifier-Replacement-Capacitor-Board-10-Capacitors-4500-Volts/283294210547


Regarding the 10 cap board:

1.  Do you think that would be a good upgrade?
2.  Would this have a detrimental effect on tube life?
3.  Or would you recap again with factory components?

--Scott