Most of them don't exist anymore, but if you're decently geared pm iJerk. and ask to join. Long as you speak english and are decently geared just tell him I said you could join.
Just because someone is a GM doesn't mean they have knowledge of the overall game or are experts in certain aspects, but believe what you want doesn't make a difference to me.
There's people that will help you ingame with gears/stats/etc but my suggestion to you is just test things for yourself.
As for what GM Armstrong says, http://gyazo.com/a4985e05cace17fedbf0723d62f0a723 . So like I said, test things for yourself and see what works.
This is how I felt while I was reading this.
As for the suggestion, when I played I still saw people spamming 3~4 SB's,which is perfectly reasonable with the damage output to me, so I see no reason to make it less of a delay.
There are colored beanies on the server, my friend has a couple. Not sure how she got them since I'm not into collecting hats, but they do exist. If I'm not mistaken she has blue, pink, and another color.