When I first started Ibought the Master ibeleive the SB-82 which is a knock-off of the Iwata, I then purchased another to add to my arsenal. But over time and having to replace the needle and cap the noticed the neddle was'nt sitting centered in the cap. This caused a flat/caligraphy pattern and frequent tip clogging.
I Then got the Iwata HP CP+ and must say if I would have had purchased inthe begining it would have saved a ton of headaches!!
I'm a beleiver in you get what you pay for now... IWATA