Welcome to Geekhack!
First post just over a year ago, second post now. I hope you're not going to wait another year to make your third post
You can't really get the feel of a switch by pressing a single switch on a switch tester. You do really need to type on a full keyboard.
I have three Ducky Shines, two MX blue one MX black, and with red, green and yellow backlighting (although the yellow looks orange to me).
Which ones did you get?
There is not really a FAQ on buying Bro Caps, you just need to lurk around in his sub-forum, and even enable notifications for new posts. He has an
official sale thread - subscribing to that would definitely be a good idea.
Be prepared to miss out on your first few sales. You might get lucky first time (many do), but there again you might not. Often there is a followup sale for those who miss out on the first sale. And there will always be another sale in a few weeks or a few months, so if you do not win this time it is money saved towards a later sale.