Adam,
Although I have ridden with more Wee Strom riders than its big brother, I had always thought under normal conditions it had LOTS of clearance. I had an 06 FJR, which I think you are very familiar with, which I would occasionally scrape pegs on. A lot more than I thought it should. I weigh 240lbs nekked, and would always put way more than I needed in my bags. I spent about $280 on a set up HyperPro springs, front and rear. Best bang for the money I ever spent. Spring compression in twisties was drastically reduced and scraping just about eliminated. I would highly recommend that your friend look into a set.
Rod