tbol is more anabolic and less androgenic. I'm currenty doing both 50mg ED. Tbol did little for me. Once I added winstrol, my strength shot through the roof.
However, a friend of mine gained 18 pounds in 2 weeks on 40mg ED tbol (only). He got stretch marks from it.
Tbol has little or no sides. Gave me a dry mouth. A bit fatigue.