If the climb gradients you fly are a matter of trusting to luck, I'd
suggest you make all your departures visually.

Oh, please. sigh Your climb gradients depend on the quantity of
excess thrust in your airplane, the density altitude of your departure
location, and the wind direction and gradient on the particular day in
question.

What sort of climb gradient you end up with is due to chance.

And we were talking about YOUR departures, not mine. Mine depend only
on skill and a positive attitude. :-)