What gives you the idea that I didn't thank him or appreciated the gift? These are something I wanted and I was simply asking for some opinions about them from people who have had the chance to use them. I have them installed and intend on trying them as soon as the weather permits. To those who gave me their opinion I appreciate it. Thank You.So, the bigger question is; your brother buys you a gift and you want to know if/how it works? My thoughts are just try it out when you first have a chance (and thank him for the thought). If it doesn't, re-gift.