I have tried to search out answers on some of these but didnt seem to find them so here goes. As always any help is appreciated.
1) Is there any rebound effect as in down regulation of natural production upon discontinuing? If so is there a recommended pct?
2) I have seen several posts that recommend IM as opposed to subq. If one were to do this and were using 40mcg per day would you spilt 20 in each bicep for example? Have any of you compared subq results to IM personally?
part b to that one is what pin do you recommend for IM with this?
3) Do most of you feel split dosing is best or do you do a single does post workout?
These may be very basic questions and if I missed the answer in searching I apologize in advance. Just trying to learn and be informed.