For myself, I replaced a VX1 with a cheaper Weaver K6 and things got all kinds of brighter for me. May get flamed for saying it but certainly was evident in the field. Better adjustments too. If possible save up a bit more and get a VX2 if you can. You will not regret it. I bought "bright enough" my first cope and have been going brighter with each subsequent one. Wish I would have just saved the money I spent on my first and applied half of that to get better.
If you already have the VX1 and want to use it go ahead, It isn't terrible, but don't go in the field with it cranked up max power. Leave at 5 or 6x and I think you will be happy.
