The 329 is 12 ounces lighter than the 69 and holds 6 rounds if you so desire. Both same barrel lengths (well almost: 4.125" vs. 4.25")
Also, IMO the sights are superior on the 329: Light Gathering HI-VIZ? Red Dot front and black v-notch rear, adjustable; vs. the 69: Front Sight: Red Ramp and Rear Sight: White Outline, Adjustable.
Jeff, that one-armed thing you wrote is almost a "digital copy" of what I have written before in these pages and also tell the women in my handgun classes (and guys for that matter)
I have taught quite a few ladies and girls and guys to shoot and I always use similar wording when asked to recommend a self-defense handgun, especially for the in-experienced.
And when I was a Certified Handgun Hunting Tester for the old Colorado Division of Wildlife I also expressed those ideas to my prospective hunters and actually had a few of them change their handgun to a DA when it came time to qualify.