We don't all have the same results.
I have been taking Forteo for about 4 years.
I will say that IMO taking the bisphosphonates when you stop Forteo is probably a really good idea. You are likely to lose a lot of bone density fast if you don't.... and the side effects are usually minimal. The bisphosphonate may not likely increase your bone strength and density much but likely will keep you from getting much worse.... and you don't want it worse.