@kar50, when you stop Forteo the cells that remove older bone will drop more significantly than the cells that add bone. Alendronate or Risidronate are probably strong enough to maintain the gains on Forteo. But you could keep track of the change with bone markers CTX and P1NP.
Reclast is probably too large a dose for most of us. They do know that 4mg is as effective as Reclast's 5mg. You could ask for zoledronate which is easier to get in a lower dose. Also, Reclast is thought to be effective for two years for most people.
The side effects can be overwhelming, it seems especially for those with other autoimmune systems. If you decide on Reclast be sure and ask your prescribing doctor to write for a longer infusion 30 min to an hour. It's easier on your kidneys.