Welcome, Ken. I’ve long considered my FF756-4 to be about my most versatile rod, and a good backup rod on just about any trout or warmwater outing. Some of that’s the versatility of a 6wt line, but it’s a good rod nonetheless. A quick search here for “versatile” or “FF756-4” will produce a day’s positive reading.

My advice would be to simply buy whichever first comes available, and start using it to determine how it meets your desire and needs. Both models are well regarded here and you can almost think of it as as loaner with a deposit; you’ll pay a modest price, and can always resell for about the same you paid, maybe enough more to buy lunch. That said, I’ve never taken that advice; the eight Fenwicks I’ve bought are all still here.

Coming from bamboo you may not have the same urge to force a lighter line than graphite guys often do, but I’d also advise starting with a 6 wt line, letting the rod work, playing with your stroke for a while, etc., before concluding that the rod has told you to use a 5 wt; some do primarily use a 5, but I think a good majority think Fenwick correctly labeled the FF756-4 as a 6 (I’ve never cast a FF75-4). It’ll also handle a 7 for some purposes.

Enjoy.

PM sent.

Larry