Oyaide P004 and C004 plugs

Which Furutech plugs did you have?  I use several of the 004 Oyaides in my system.  They are quite neutral but hide nothing.  I had the Oyaide 046 before and thought the 004 were a bit aggressive when I first installed them.  That changed pretty quickly but I can't say how many hours it took.  I assume it was getting accustomed to a more detailed and transparent sound as well as burn in.  Give it time but if your system does veer to the bright side, these plugs won't do anything to ameliorate that.   These are excellent plugs in my opinion..

I had the Furutech FI-25 G briefly and was not impressed.  I had several of IeGO plugs at that time, including their gold plug, and found the IeGO's all better, preferable, to the FI-25.  I did a lot of mixing with plugs, blending the sound of each to get a hybrid sound that sometimes worked quite well.  May I suggest you try one of the Furutech FI-28's and an Oyaide 004 on your power cord instead of both 004's?  That may take off the edge and remove the aggressiveness you're hearing while bettering the Furutech only sound of before.