Lighting Question

[Tigger]

Thanks for your input

If PC bulbs are $74 each and the workhorse 7 cost $56 then the total price would be $204.

The T8 NO bulbs are around $5. A 4 bulb setup would be $96.

If I buy 2 workhorse 7 ballasts and 8 NO bulbs (only $192), would this be brighter than 2 PC bubls?
Can I use 2 workhorse 7 ballasts to overdrive 4 NO T8 bulbs?

Is the colour of PCs better than NO's?