Don't worry too much, the BGS brush up course is very good for sorting out problems and you do that many practice exams that by the end of the 2nd week you'll be well ready for your exams. I found gyros confusing until the brush up but somehow got 100% in the Instrument exam mostly thanks to Derek H. Overall, I found BGS to be very professional, they got me through all of the exams 1st time with a 95% average.
Last edited by CharlieSierra; 3rd Jul 2009 at 17:54.