What is the minimum pressure needed for re-cocking?
Btw, all parts are (still) original. How can I lower the limit?
To lower the operating pressure, you need a spring kit and a few internal parts replaced, like the valve.
The lowest Ive seen my blowbacks recock is in the low 500s & high 400s but they wouldnt throw a ball very far. But with some polishing & porting, I have had my TL+ down to 260ish but it was a gas hog.
Give me a few minutes to find a link to Otter's LP article.