It can't be a small wart on the project either. If there is one small section that is inconsistent with the rest it's going to be a pain point. I love F#, but

It can't be a small wart on the project either. If there is one small section that is inconsistent with the rest it's going to be a pain point. I love F#, but don't think it's ideal if it's shoe horned into a C# project. You then have this boundary layer you have to maintain.