"...although there are things I would have done diffidently in hindsight."
please tell us more.
I would have done a number of things differently. First, I did study up on the trail and felt I had a fairly light gear.
The issues: being out of shape. You are a Pacific Northwesterner, like me, and you probably can appreciate the fact that hiking season really doesn't begin in earnest until mid-June when the mountains finally begin to melt out. Well, come May when I started I was still not in even good hiking shape. I'd be in better shape the next time, and not because the PCT is so strenuous. There are a lot of climbs and descents, but the grade of the trail isn't particularly difficult. The problem I had initially was due to the heat of Southern California. Going from barely breaking 60 degrees to 90+ degrees really socked it to me. Being in better shape would have helped, most certainly.
If I were to do it again, I'd ramp up the miles slowly. My feet and body would have thanked me for being more conservative in terms of miles early. Fewer miles would have helped my feet in particularly, which were pretty blistered and sore for the first two months. It took me a while to begin the practice, but early in the trip when temperatures soared, I stopped hiking midday. We'd hike from 5:30 a.m. to 11 a.m. and then stop for four or five hours. We'd then get back underway and hike again until it got dark. It was surprising how it really didn't affect your overall mileage because you didn't have to carry a ton of water and you didn't wear yourself out as fast. Later in the hike hot days weren't really as much of an issue since by then I was in better shape.
I would have also like not to have been so obsessed, particularly early in the trip, with the goal of reaching Canada. I think this is normal - it took a while for me to relax and just learn to enjoy the moments and not worry about it. Make 20 miles a day for a 132 days, and you too will reach the border. Of course, town stops and zero (mile) days have their allure, which means....
...Taking zero days early in your trip come at the expense of zero days later in the trip. Ask anyone who is still hiking in late September / early October if they'd have liked to have a few of those zero days back - I know I did. But the truth is your second half of the trip will be much faster than the first half - you are bound to be a faster, better hiker by then.
I wouldn't worry so much about gear. Everyone talks about gear early in the trip. After 1,000 miles, NOBODY worries much about it. It all works, some better than others. People are comfortable with what they have. If anything, I became way less of a gear head doing the trip.
Hope that helps!