digital caliper "skipping"?

I have a $300 set of Mitutoyo calipers... Never use them... Afraid I'll damage them... I have three General brand sets of calipers... Little more $$$ than the really cheap variety but they actually feel pretty good, fairly smooth action..... They even have a fractions mode...

If I'm serious about accuracy I have a full set of Starret Micrometers from 0-8"