its been said a million times but test is test, 400mg in 1 day i dont see the point in, sus flu happens later bec the esters arent as fast acting, the exception being the small ammounts of prop and phen prop... point is test just hit u hard with a fast acting ester, from what Ive read test flu is related to your immune system weaking from the synthetic test comming into your system...
I would suggest doing the drop differently 75-150mgED? i do 100mgED while on get good results.