Upcoming onc visit-- drug vacation???

I've been on Femara for almost 4 years.  In that time I've negotiated 3 one month "vacations" from Femara with my onc.  I negotiated the vacations when the s/e became so severe I was ready to go off the drug entirely.  I guess my onc figured it'd be better for me to take a vacation now and then if the overall end result was to keep me on the drug long term.

After a week or so off the drug, most of the s/e began to resolve.  By the end of the month, just about all of them were gone.  I was able to get up from a chair and walk normally, not stagger with stiff joints like a 90 year old.  Weight began dropping off without any change in diet or exercise.  The short-term memory improved.  I was able to sleep the night through without night sweats or painful joints/muscles waking me up.  The nice thing is that once the vacation was over and I resumed letrozole, the s/e took several weeks to get back to the intensity they were before.

Yes, it's a calculated risk.  I'm Stage IIB.  My decision might have been different if I were a later stage.  But I'm taking other risk reduction measures such as losing weight and exercising vigorously for at least 30 minutes a day.  After long discussions with my onc, I was willing to accept the risk of going off for a month to get some relief and give me courage to keep going for my full 5 years.

I believe I read on a thread here that 3 month vacations are being studied as a way to improve pt compliance with these drugs. 9 months on, 3 months off. If you turn out not to be menopausal, will you be stopping next year for 3 months to test again? Can you wait until next year because you will be more likely to be menopausal then(if you have concerns about stopping)?