Muley, No, the PRB not hard to load at all. But I use patch strips and cut at the muzzle in lieu of precut patches. Also, I need my short starter for the PRB to get them started down the bore.
With the saboted bullets, I can start them down with my thumb and then push them down with the ramrod.
I loaded second shots with both and there is no substantial difference between first and second shots.
Now the edge in accuracy goes to the PRB at the 50 yd mark. But the difference is so slight that it's not even a consideration in the decision.