You'll have to see them printed to make a call on the greyscale, a monitor can't represent it correctly,
I had actually used exactly RB's rewording, and personally I'm in favour of the of over at, as at seems to me to feel a little condescending towards those who may feel they are at a lower skill level.
Don't know if I'm getting that point across right, try this...
I'm ok with being a brewer of a certain skill level, I don't feel like I 'have' to learn more to be a 'better' brewer, where when I read 'at' a skill level I feel like I'm down at that level and somehow inferior...does that make sense?
I think there are lot's of brewers of a certain level that are just fine and happy where they are, and they're welcome to join and stay right where they are without feeling like less of a brewer?
Of course maybe I'm just overly sensitive and parnoid, because I am still at a lower level than most of you guys.
JW