Using Flaked Maize/Corn

Yep.

You’re correct that I should have been more specific and said “pale malt” rather than 2 row. But given 2 row and 6 row kilned to the same degree, the differences in diastatic power are minimal.

Or replace it with an equivalent amount of sugar.

Good point, Tom.

yea for that amount you can use table sugar to lighten the body.
If you are looking for that sweet corn flavor there is no real substitution.

Yeah, I was going for that type of mouthfeel and flavor profile so it looks like my best bet will be a 1:1 ration with .5 lb flaked corn and .5 lb 6-Row.

Would increasing the ration to 2:1 (or higher) work with something along the lines of a Marris Otter or Gambrinus ESB Pale Malt? Or with a lack of a partial mash, is the 2-Row / 6-Row about the only options because any other grain(s) wouldn’t have the diastic ability to break down the starch from the corn? I’m just thinking about different flavor profiles here.

Sure, a pound or more of pale malt might actually be better or more in line with the style.