I have a Zkit on order and in looking through this forum, it has been suggested that you can increase the 33 UF electrolytic caps to 47 UF to get a lower noise floor.  is there anything else that would need to be changed and could you go higher than 47 without changing anything else?  

Also, what film cap values are used to bypass the electrolytic caps?  Also on the schematic it shows bypassing the 3.3uf caps too.  If I am reading it right.  I am not super clear on reading schematics.

Any pictures you all have of the anniversay mod would be great.  Thanks!!

Hi, SROWE, welcome to the forums!
I’ve built several of these now, both tube rectified and diode rectified, using the PCB and point to point versions. I’ve never found a need to increase that cap value. I would personally follow the schematic exactly (and make sure you’re using the newest schematic- some older ones have typos), and include the anniversary mods. This is a very fine sounding circuit. I think you will find more pleasure in geeking out on quality caps than changing their values.

There is a lot of good info on this forum regarding cap types. Pay particular attention to member Will’s advice.

Good luck, and keep us posted on your build.