(getting cued 4 double posting) 4got 2 mention,i bought a can of CRC QD Electrical Contact Cleaner 3 years ago at Walmart,$8. Still have a nearly full can and it works EVERY time i have analog issues on my 2nd Vita. use the nozzle under the rubber flap under analogs,quick shot,rotate 2 minutes with the system OFF.
the "ghosted" movement during gameplay is caused by dust/dirt/etc. lodging inside the Vita's analog chambers and applying pressure 2 the mechanism as though it were being pressed.
if u have alot of built-up debris,it make take several uses 2 clean out thoroughly,just don't drown your Vita with it.