Heeling the boat in light air

I'm new to the Flying Scot and even newer to racing. But I read a lot about our wonderful boats. I know all the sail control settings for light air and have always heard/read that the FS should be sailed flat. Last Saturday during a club race as my crew and I slowly headed for the windward mark (winds approximately 5-6 mph), a former FS sailor yelled to us (from a pontoon boat no less!) that we should be sitting on the leeward side to induce heeling. We were bring up the rear at the time and the leeward side was shaded by the main so why not try something new? We moved but I didn't notice any improvement in speed or pointing. My question is this: should we induce heeling on light wind days? I sail exclusively on a lake in the south and we have many light wind days during the summer so your answer will be put to good use. Thanks in advance for any advice and tips. Ron