the problem is about polarizer and oca they should be original otherwise you will have problems I'm working on LCD repair for 9 months and this is the problem moreover if they are high quality you will face bubbles problem Hope this will help.
For the static I usually follow the original standard after putting polarizer you can put two drops one upper left and right corner the drops should touch the polarizer on each corner this is for iPhone 6 and you can take a photo after removing cracked glass and apply them as it is
I'm facing same problem I just found why you can see and focus at iPhone 6 lcd edges you will find them curved so this will short the vertical and horizontal lines that are not visible to human eye anyway until now no such a solution only loca can solve it easily Thanks if you find out please share us
I faced the same problem that you faced it's not about static issues but it's about lcd thickness and glass and OCA the real problem is before we remove glass it's working fine right! also after applying Polarizer it's fine ! also but the problem appear with the two following steps after Vacuum Laminating Machine and After Autoclave most of them after Autoclave for iPhone 6 and 6 Plus I did about 40 - 50 LCD's all same issue so there must be something wrong !!! I found the problem but don't know how to fix it the problem is again it's about the lcd and touch contains from layers vertical and horizontal not visible for human eye so after the pressure the edges of the lcd under the glass it curve so the touch will not be responsive for sure ! but you can still get touch sensitivity if you press hard on glass it will respond so please if any one got an idea how to fix share us please we paid large amount of money and of course we don't want to lose our friends and customers I used anti static pen same problem...