JE Labs simple 2a3 filiment tranny, 1 or 2?

[spgjmf]

hi folks,
I have embarked on my je labs simple 2a3 build. I recieved all parts and while doing additional research on DHT and such, I see it it best to use a hum pot on the 2a3 heaters. the jel 2a3 only has one filiment tranny, so to keep it simple can I use one hum pot for both tubes or am I better off ordering two filiment transformers and using seperate heaters for the tubes?

if I go with two filiment transformers, do I need to change the shared cathode reisitor?
or should I just build and see how bad the hum is and go from there ....

thanks for any suggestions?

Jeff