Yes, it"s more of a comment. My laptop doesn't have a serial connector so I'll need to come up with a work around. Adapter or whatever. Probably be nice to have the WiFi AA function.You have not read, what I recommended, right? Please do so.
Yes, pull out is necessary.
No, ID7v2 can not be installed before anymore, as .335 and .352 delete ALL Tweaks INCLUDING ID7. So you will have to do the serial access again after each next FW update. ID7v2 works only for the actual/current FW you have installed. It will be deleted after each new install of FW .335, .352 or .352+, thats why you have to do the ID7v2 again, if you update further than .352.