the main concern from my experience is crashing your e2, for some eq is as strong or stronger than aromasin mg:mg, look up the chemical structure of both and you will see why they might both share this property. so keeping your test higher is better start out at 2:1 test to eq. as for bloods i never saw an increase in hematocrit like many people say can happen, i speculate many people get bloods done while dehydrated so which will make hematocrit artificially high, drink at least 1L of water an hour before getting bloods drawn.