I had both the 5mg and 10mg both are great. 5mg are the older ones 10mg is the new batch. Never had the QV but I did Var 5 times. Did BTG, SPA, Boanavar, and BD. BTG was the best but BD was my 2nd favorite and cheaper than BTG. Would recommend trying the BD gained 14lbs kept 12 on 40mg for 9 weeks on my last Var cycle.