Hood for the Pentax 6x7 45/4 and 75/4.5

Is anyone using the Non OEM hoods for these? I am looking for hoods and it seems that most of it is overseas, and with how it is now shipping is so slow. The main thing is to get a hood for the 45mm. Im not sure if regular hoods would be ok, I am using a (non slim) filter on it too.

It's such a wide angle that a 45 would be hard to shade period if you're facing the sun. Sometimes a hand or hat can be placed a further distance away from the lens to block angular flare. An effective hood is a different story unless it's a fully adjustable compendium like view cameras use.