Yep, caps, op amp socket, and the mids trimpot next. The original circuit has a 9k1 resistor, and tagboard effects give a mod with an external 10k pot. It's the sort of setting I wouldn't change much so I am using a 10k trimpot. I won't be surprised if I end up dialing in something close to 9.1 k
It's been a while since I built on stripboard (first stripboard pedal). I had forgotten how much more stressful it is! With a PCB I can at least be fairly sure that a component is in the right place, but stripboard is so much easier to get wrong. All that counting, double-checking and second guessing was exhausting. Gets easier as more components go on though.
PCBs tend to have better clearance between solder pads too. I did quite a lot of continuity checking where it looked like I had accidentally bridged adjacent joints.
Finally, at first I found the solder wouldn't take on the stripboard at all. It just balled up on the lead. I gave the copper a very light sand with 400 wet and dry which fixed it.