I think it’s common that, deadlifts in particular, that that first really heavy rep feels deceivingly heavier. DL last week 390 (last warmup heavy single) felt really heavy, so I only went to 415 on my 1@8, and the first rep of 4x390@9 felt heavy, but had no issues getting 3 more reps in and was probably more like @7.5/8. The first DL rep just messes with your head some days.
Another thought–when I pull “out of position” and the bar is a little too far in front of midfoot it tends to feel heavier than it should.
I work in Sales and pre-COVID, it was normal to be traveling around 10-20% of the time and catching flights throughout the week. My schedule is also, normally, M/W/F. When I had to travel, my schedule would start shifting to all sorts of weird rhythms to accommodate the travel and to not miss training.
Since you train later in the day and you had to do it earlier, that could easily be a reason in terms of body just being ready for that change. It really depends on your and your overall lifting experience. But, the non-linearity in performance throughout a training program is not something to be overly focused on since it’s normal. What you should focus on are the longer term trends in how things are coming together for you. While it’s good motivation and landmarks to track to think that you hit X 2 sessions ago, X + 10 lbs last session, and today should be X + 20 lbs. That is artificial, however, and doesn’t have to at all go like that. Some weeks it can, other times it won’t.
The best thing to do is keep all of these landmarks in mind as they’re highly useful for your lifting experience and intuition. You will use them as guideposts through your training sessions to get an idea. But, let your expectations stay open about what can/can’t happen and let the exertion of the session you are in dictate things. The easiest way to get in trouble is to think you can control the progress and the numbers have to follow a certain path. Especially with the more chaotic and unpredictable life many are living right now, you have to show up and do your best with landmarks in mind and RPE adhered to, but let the numbers be what they are and track the larger trends throughout a train block.
Would your work capacity not be suited for the bridge 3.0? Seems like there’s too much volume for your capacity or yeah overshooting rpe too regularly. I remember when doing the SSLP and squatting 3 sets of 5 at 140kg was the most taxing ordeal the next day but now I do my 140kg squats at rpe 8 and add small 2.5kg increments in there and throw some singles in there and i aint ass blasted like I used to be. Sure I feel sluggish next morning when I’ve accrued fatigue over the course of 5 weeks but then I do the singles block with the decreased volume but upped intensity and I’m totally fine.