Never use SUGGESTED names for payments, you will get fucked and then it will be up to you to unfuck yourself.

I've run it as high as 10 myself, I think next round I'm going to try 20.
As for the cancer, I think it's blown out of proportion. The study with mice getting cancer at all doses referred to mice that were 1. predisposed for cancer and 2. taking excessively high doses from a low of 5mg/kg to 10mg/kg. That would be like a 220lb dude taking 500-1g a day. In comparison if you took say, aspirin at 50x the recommended dose, you'd be dead.
If you adjust the dosage to human metabolism you get a much lower dosage of 80mg-160mg, still much higher than anything we'd take but it's definitely worth researching a little deeper.
Take note that those studies were conducted with or after treatment with 7,12-Dimethylbenz[a]anthracene, a carcinogenic used in labs for it's cancerous effects.
Here's an article: https://www.researchgate.net/figure/49833266_fig1_PPARd-agonist-GW501516...

A note from the study:
Mice maintained on a diet supplemented with PPARδ agonist GW501516 following carcinogen administration resulted in the rapid development of gastric tumors in 12/15 animals, whereas treatment with either GW501516 or DMBA alone was not tumorigenic (Table 1)

For me personally it dramatically increases my endurance. Wether its for the gym, bedroom, or work I feel like I have that "second wind" all the time.