TAS EOB Drop in board question

I have an EOB drop in board from TAS. I purchased it for use in a different engine than the K-Line Hudson that I now want to put it in. I called Phil at TAS and he told me it should be fine but to be careful, because K-line often switched the power leads and it could damage the board. Now I’m afraid to start. I’ve done many upgrades to my engines over the years but have never touched the K-Line ones. Has anyone done this upgrade to the K-Line scale Hudson. Thanks for any advice.