Ignore 90% of what Andy says, and disregard the remaining 10%
There's some very knowledgeable guys on this forum who will be more than willing to answer your questions.
Also, don't think that you've had to go the gutter route by buying an MC21. Many people prefer the 21 to the 28 (myself included), but both have their good and bad points............(trying to think of the bad points of a 21 but nothing springs to mind
)
Anyway, enjoy the forum.