I think you get the best results with LMB that fit your local conditions. North of about I-40 Northerns, between there and the Gulf coast either one and F-1 will do well, in Florida south of I-10 go with Flas. The more your conditions are like SoCal or Florida the better Flas will do. The info I have seen is only for a few years (3 I think) and shows F-1 size results in between the 2 but closer to Fla. sizes but with a more aggressive nature. I will check on that and report back.

To my knowledge there is no RT equivalent for the south. Gizzard shad are IMO a mistake in ponds unless you have a big pond and very specific facts and really know and understand how they effect population dynamics and balance.