Stack question...

I'm currently on a high protein low fat diet. I just started taking DBOL and Winni-V a few days ago, I'm also consuming a serving of Vitargo CGL a day. I work out 5 days a week. One of my friends told me about VPX Sports about a week ago and I have been eyeing some of their supplements, I was wondering if anyone on here has tried their Gangsta Test, 1-Test, or 4-Test Cypionate? I was considering once I'm off of this 5-6 week cycle purchasing Gangsta Test and 4-Test Cypionate, which they claim is a great stack. Does anyone know how good VPX sports is? Has anyone tried their products? Has anyone heard and word of mouth about VPX? Anything, please let me know, thanks!