Pure 240 circuits with red and black leads

When I set my CT’s I discovered for whatever reason I have 2 standard electric water heaters wired up with red/black conductors and a white neutral. Before I figured this out I passed both conductors through one CT with one wire going through the opposite direction. They seem to be reading fine but I’d like to know if there is any difference on a pure 240v circuit between one CT with the double setting or wired like I have it now? Thank you for your help.

No practical difference.

Ok thank you overeasy!