Since you asked for opinions...

The 5" barrel and black front sight correct the only thing I did not like about my old 4" Model 63.

It had a red ramp front sight and the front blade was a trifle too wide for the rear notch. Not enough daylight on either side of the blade made it hard to prevent some horizontal stringing. Moving the sight out forward an inch increases the sight radius 1" (obviously) but if they keep the same width that will show just a tad more daylight around it.

On the other hand, it increases the overall size.

But bottom line, it's a great lightweight trail gun. That 5" barrel doesn't detract from the portability too much and it ought to be a really accurate shooter.

Gunnery, gunnery, gunnery.
Hit the target, all else is twaddle!