Well to be honest I don't have any actual experience with it. But the fact that I really don't need it is probably the biggest reason I have no desire to get it. The only reason I got that pair was because the opening bid on eBay was so low. I had no idea that no one else was going to bid and I would win them on just the opening bid alone. When I got them I decided to sell them mainly because they were so close to my other pair in Zug.