There is no need for an anti-estrogen as Winny may have such a property of its own and does not aromatize at any rate. The only counter-indication with Winny would perhaps be an anti-hypertensive if you use for a longer stack. Be sure to get liver values checked if you use for longer than 6 weeks on end. There is no real use for Clomid or
Nolva post-cycle for Winny specifically since there is no post-cycle aromatisation to cause negative feedback. That makes whatever gains you made on Winny quite easy to maintain.
Dus nakuren hoeft op zich niet!