1-andro reduces to 1-testosterone via a 2-step conversion process. If you are supplementing with enough endogenous 1-testosterone to have some dramatic effects on body composition (which is the point, right?), then I assure you that it is more than enough to substantially suppress your natural testosterone production.
If you run 330mg of 1-andro a day, then after 8 weeks, your testosterone levels will be significantly lower than normal. You can allow your body to recover on its own, which could take months or maybe never happen at all. Or, since you used a drug that tanked your testosterone, you can use another drug, namely a SERM, to restore your testosterone levels in about 3-4 weeks. It's your call.