I was looking into buying a used 2021 Epilog Zing but it seems as though they did away with the auto-focus feature. Is this true? On my Mini that's about all I use. Only once and a great while do I use the manual focus. Is it easy to get used to manual focus? Seems like a bit of a hassle. The other thing I noticed is the DPI is different. On my Mini it goes in increments of 400, 600 and 1200 but the Zing only goes from 400 to 500 to 1000. I normally engrave @ 400 DPI and occasionally 600 DPI. Not that 100 DPI makes a huge difference but it is nice to have a slightly higher res. The maximum engraving height is also less on the Zing than on the Mini. Is it me or has Epilog started making cheaper versions of their machines...??