best place to get a NO-DOT-MATRIX-PROBLEM tint is at Tropic Window in UNION, NJ.
http://www.tropicwindowtinting.com/
if you're around NJ, i highly recommend them. they do exotics, and yea, it's a little pricey, but they take care of you well. they'll get it done RIGHT! used them for my last 330i, too...
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e92 335i Jet Black
MT, SP, PP, heated seats, CA, 20% tint all around, painted front reflectors
awwww yea!