here's my thoughts...... first of all congrats on your success so far.
as far as a stall goes, Dr, Atkins states in the book (pg. 182 DANDR 2002) that the criteria for a stall is no weight loss or loss of inches for 4 weeks. also he states that increased muscle mass can deceive the scales as muscle weighs more than fat. a few bullets points down from that he also states that you should examine your menu to see if you've stuck to the plan and adhered to the rules. (these are not exact quotes from the book, somewhat abbreviated)
seeing as you mention you are exercising regularly, and also have had foods from restaurants that most likely have sugars or other things not allowed in induction, those are definately things you should examine more closely. i would suggest you keep at the exercising, sounds like you are doing awesome. however i'd ditch eating the coleslaw and any other items at restaurants you aren't 100% sure what's in it.
onto the ketostixs, as far as the color, i've heard people say that the darker color means dehydration.(make sure your drinking plenty of water everyday) the true object of those stixs are not to get the darkest color possible, if you get any color at all, (even the faintest color) you are in ketosis. (IE-they are kinda like the results of a pregnancy test either you are or you aren't) personally, i don't use them as there are other ways to tell if you are in ketosis. here's a great link to help understand-
http://www.atkinsdietbulletinboard.c...tix-color.html (Questions about ketostix color)
well hope this helps, and here's hoping the woooshie fairy visits soon.