Honest & constructive, are you saying that the other reviews have been dishonest & destructive ?
I know I have personally used Visionary balls for about the past 4 or 5 years. All reviews I have written on their equipment have been my observations and experiences. Nothing paid for, or influenced. I would dare say that all of the others that have been done are the same and anyone is more than welcome to ask me any questions on the Visionary gear I have used and have seen being used (as well as anyother equipment I have used).