The master 140's are my favorite moral boosters! I have several from 140-142. They do indeed have spools and is the perfect lock for a noob to practice spools since you can feel the pics and work them so easily on these models!
Raking it is like taking candy from a baby! Shame on you
You will never learn how to defeat security pins that way!
The key to these models is light tension! When you SPP and the lock feels like it's locked up, that's where you want to be! Now it's simply finding the correct pin to push up on as you ease of the tension. You probably will not find the right pin right away and the lock will free up again. Simply repeat to get to the "jammed" position again, and try a different pin. Repeat as needed.
Really fun lock! Once you get it, it's a lot faster then raking it!