I resoldered mine with a decent iron and yeah it’s quite difficult because of the component size and proximity to other components. Even with a decent setup I made a bit of a mess. I’m used to welding too haha. If you’re able to do it you can save $50+ on a new control board. If you’re not comfortable the price for a new control board can be worth it. That said, it’s worth a shot. What are you going to lose if you mess it up with a cheap iron? If you get it right you get a functioning OP1. If you mess it up you have to fork out, which is what you’d have to do anyway.