On the Walther, since it is a TDA (also called DA/SA), there will be two different trigger pulls depending on the mode the gun is in.
For your first shot with the hammer down, Walther's website states that it will be a 13 pound pull, and then a 4 pound pull after the first shot or whenever the hammer is precocked.

Imagine going to your weight bench, stacking up 13 pounds of weights, tying a string to the pile, and then trying to lift it with your index finger. You can work out in your own head just how much less precisely you'll be able to keep the tiny sights on target while exerting that much pressure.

Sure you could cock it first...at the range,when you aren't whipping it out of your pocket at light speed to try to save your bacon.

The Glocks, by comparison, have about 5 pound pulls, and it's alwaysthe same for every shot. Kahrs and XDs are the same way too, but they are about 7 and 6 pounds respectively. Pretty hard to tell the difference.

I like the LDA triggers from ParaOrd too which are smooth and light but expensive.

Many 1911s are also around 5-7 pounds. I wouldn't go much lighter than that for a defensive gun, especially a single action pistol with a very short trigger pull like a 1911. A modified gun can be tough to defend in court and you may end up shooting someone that you didn't have to if you find yourself holding them at gunpoint (and using poor judgement by having your finger on the trigger)when they make a sudden move that causes you to reflexively contract your fist. BOOM! Oh crap.

Revolvers fired double action willhave heavier pulls thanthe semis I mentioned, but nowhere near 13 pounds andshould be much smoother than the PPK.

Just my 2 cents.
(I guess by now it's more like $3.50, but you get the idea.)

BTW Don,
It's always good to have new people visit the bowfishing forum.
Thanks for stopping by.