hey folks.. thanks for all of the great advice... the gap is situated in such a way that i can add 20 feet with no problem ( maybe 45 minutes of work) i am going to give it the extra 20 feet and then report back with the results... by the way... gap said that it "probably" will not improve performance... however you know how we are... just gotta tighten that screw one more tweek till it breaks.. 73 paul w8jn