About right, but...may be the battery not holding the voltage output back.
About right again, with engine running a few minutes
About right. The extra volt is surface voltage and soon drains off. You need the extra voltage pressure to push the charge into the battery
Could be correct, if you just measured the voltage at startup. Run the engine for a minute to see if the rate goes down. It may be the high initial output is a result of the drain from the starter
Solid state regultors usually work or not. There is an amazing difference in the output between regulators, meaning 10 new ones in a row may not put out a consistant rate, but have a range of rates that are acceptable.