Personally due to the supposed ability for EPI to act as an AI, I would use the nolva to block estrogen in breast tissue. As with any lowering of estrogen there is a potential for rebound and furthermore gyno. Selectively blokcing estrogen receptors in breast tissue will help greatly reduce your chance of getting gyno. Clomid is also solid, but because its activity takes place in the hypothalamus its more geared toward HTPA stimulation rather than gyno prevention. I would save your clomid for a cycle that will be more suppressive then EPI. Like said above use a SERM + an OTC product. For my EPI cycle I used Nolva + post cycle support.