I want to start mounting and matting my work up to 16x20. I have seen Fletcher, Logan, Mat Master, and C&H on eBay with lots of claims about ease of use, nonwarpable base etc. I want one that is easy to use, will cut reliably, and has stops so that I can't mess up too much. I have been considering Logan 650, Fletcher 2000, Mat Master 47" and C&H Advantage Pro M60. Any suggestions or recommendations from personal experience?