you want quality no hassle consistent experiences with your equipment, then you just buy quality no hassle consistent equipment. im telling you, ive had cheap pu, machines, needles, etc. and always thought it was Ludacris to spend more on equipment if they have the same products from different companies at a substantially lower price. i quickly found that that was not the case. the more my customers expected from me, the more i expected of myself, the more i expected of myself, the more i expected of my equipment. truly purchasing better supplies gives you a feeling of pride and responsibility for your craft. and there is so much difference in how quality inks, pu, machines, etc., function compared to cheap inconsistent knock-offs. i guess i am not really answering your question exactly other than telling you your problem is the pu not the machine as someone else stated its hit and miss with the cheaper non-quality pu's. buy an actual critical cx1-g2 that is all you need for rotaries, and you will be happy with no problems for a very long time. worth every penny.