I made some test shots with different filters.
Test1NF.jpgTest1R2.jpgTest2NF.jpgTest2Y2.jpg
Same roll of film: Legacy 400 + Diafine.
Same location but, unfortunately couldn't do them all on the same day. They were done at the same time of day, though.
Scanned them all from the negative using batch scan with same settings.
Imported to Photoshop with same settings. No post processing except cropping and labeling.

Seems like the results are much as you guys predicted. Similar effect between Y2 and R2.
I think I like the red a little better.

When it comes down to the end, I guess I'll have to size up the subject matter and decide what filter to use based on its color.
Probably should get a green filter while I'm at it, eh?