How easy is the MAS Super Pro Stick Parts Swapable For Replacement?

I got it on eBay on friday but i wanted to know how easy is it to replace the HAPP parts. Are they quick disconnect or solider. I’m a complete n00b to this stuff. Also if i wanted to get a P360 and convex buttons and swap it for the Competition stick and concave buttons will they fit? I got it used so i need to be ready for in case the joystick and buttons break down that way i can order what i need ahead of time…

You have to solder when replacing parts in MAS sticks. Replacing them should not be that hard, even if you don’t have any soldering experience.

Oh ok yeah if anything my dad can help me solder them then. So can i switch between concave and convex and competition with perfect 360?