Not to discount your experience in anyway but this is the opposite of what I've experienced. I think most people have had experiences similar to mine with Viper, again not to say it didn't happen to you or anything. I wouldn't be discouraged by the delay in communication you had since that is contrary to his normal behavior. Obviously it's your money and there are multiple reputable sources here that you can go to, I think its important for us to share our experiences with these sources whether they be like yours or mine so your comment here is still valid and important for the community.