First of all I want to say this is not a scientific test I just did it for fun since it is a very good visual test. Once I gather a few other configurations I will do an actual test with a spl meter, flow meter, and manometer.
A stock Swiftech MCP35X with a revision 2 reservoir vs an early Swiftech MCP355 (DDC2) with an OCLabs top and a modified DIYINHK upgrade controller board. This test is not scientific, but quite obvious.
If someone has a dead (or functional) MCP350/355/35X or Laing DDC pump which they are willing to send in I would be able to create a full instructional video of how to install the upgrade board into your pump.
The DIYINHK board is available on eBay.
A stock Swiftech MCP35X with a revision 2 reservoir vs an early Swiftech MCP355 (DDC2) with an OCLabs top and a modified DIYINHK upgrade controller board. This test is not scientific, but quite obvious.
If someone has a dead (or functional) MCP350/355/35X or Laing DDC pump which they are willing to send in I would be able to create a full instructional video of how to install the upgrade board into your pump.
The DIYINHK board is available on eBay.