I have been reading various internet sources about jailbreaking a 32-bit iPhone 4S and in particular downgrading from 9.3.5 to 7.1.2. As I understand it, 7.1.2 is the best choice for battery life, stability and availability of apps. 9.3.5 is simple terrible. So is jailbreaking using Phoenix the only way to downgrade? I am not interested in dual-booting. Cheers.