Attraction and the return rate are the same quantity in different units — the game ships
the conversion both ways. Raising Attraction is the only thing that changes what comes back;
your T1–T4 sliders only change
when it comes back, never how much.
So the rate above is the entire story of your long-run result. Everything else is timing.
Work out your own sack odds and jackpot timing on the
Fishing Calculator.