5E3 OT to 10K?

[Schmirleroo]

Hello fellow Ampers

Question on how increasing the OT impedance will change tone.
Building a 5E3.
I have a 20 watt 6K6 OT
I also have a 20 watt 10K OT
As 6V6's like to see around 8K.. I'm wondering what the difference between the two OT's would be in TONE?

[pdf64]

Are they otherwise identical apart from their intended primary impedance? It’s often the case that such queries get raised in regard of 2 rather different OTs; there’s more at play than impedance and power.