Got a double! What a hoot! Air temp got up to 75 in central Missouri Sunday and the bass were active. My son hooked up a double on his first cast - two bass on one rattle-trap. One was a Northern Largemouth, the other was a F1 Largemouth. (My F1's have a clipped fin so I can tell them apart). This was our first, direct side-by-side comparison!
Both bass were stocked a year ago at the same time. The F1 was 12" and about 2" longer than the Northern. I know that this one datapoint does not mean much, but it was kind of funny so I had to report. I will report again on the F1 experiment, later this year, when I get more meaningful data.