Napsc and Flatcap power different bits of the 202 and are therefore not interchangeable!
If you have a 200 power amp then the Flatcap is a total waste of money imho. A HiCap or Teddy equivalent is a different matter, in fact Teddy Pardo makes a power supply which will do both the Napsc bit and the HiCap/Flatcap bit and in my experience works very well.