The way i read it it seams more like ya gotta cover the hole, unscrew cap slightly turn, fill, tighten up more flip, watch bubble....... Not trying to cause issues dude, just the way i read it.
You left out the part where you sacrifice the chicken and do the voodoo dance around your PV.
Seriously though, it's pretty simple. And the only reason I am doing the top fill method is my plastic needle tips have not shown up yet.
Honestly, at least for me, the kayfun and my Nimbus have been pretty much perfect. Have not really used a Genny in a week.