Im about to come off of a 4-5 week cycle of msten rx and had planned to go straight into a 4 week halo extreme cycle, and was wondering if I would need to run the econtrol along with the halo...this was my 3rd cycle of msten and I've never tried halo, but from what I understand it is less potent than msten so I was wondering if my estrogen levels would elevate too high after stopping the msten, or if I should just wait and run the econtrol after the halo. Any input would be appreciated.