Hey Tyler, I’m certainly not a coach, but I’m on my 3rd cycle of TFNA/TFUA. I felt similarly about volume and started my volume at 4hs/wk rather than 2.5.
Also, I decided to make a concerted effort to track strength and climbing more accurately. Yes, you were climbing for 2 hours, but were you moving on the wall for 2 hours? I found I was moving about 5-10 min per pitch (I timed myself at the gym and at the crag the first few times) then I just multiplied my # pitches * 5 min (if the were easy or if I was on TR and 10 min if they were hard/I was on lead).
For strength, I found it was too variable since I would rest a lot more when lifting heavy and it didn’t quite feel right to only count the time I was moving the bar since heavy low volume days felt harder (with longer recovery) than easier high volume days so I just decided that all strength workouts (as long as I completed my whole program for the day) counted as 45 min.
I always re-start the transition period and consider it a grace period for me to actually get the right workouts in on the right day. So during my transition phase I’m just trying to hit the time goal and less bothered about hitting it with the right activity, I consider it a period where I can dial in my activity to match my training plan whereas the base period I’m more strict about how I hit the numbers.