Wow! since leveling them and letting them run in some more from sun up to sun down over the weekend and for 2 hours I ran the volume at 12:00! somewhere around 10 watts!
Suddenly the high end went flat so I removed the resistor I added to the tweeter to drop the spike by 2 db. and still no glare,seems the new caps smoothed out and the sibilance just vanished as fast as it came.They got another 38 hours just since last week end of break in time.So now I have more caps coming,they can just sit,no more cap rolling!
All I am going to do now is go in and remove the Xovers and clean everything up,replace the resistors with Mills non inductance and there done!
In the end it will all be worth the trouble but one piece of advice is be very careful to select neutral capacitors and give them some time to smooth out. Mine took close to 90 hours.
Funny thing is when I first put them in no sibilance but they went through a 50 hour or so stage where you couldn't stand them,I seriously hope this is it and they are done with no more surprises! This is the most radical burn in I have ever encountered,although I did have a similar issue with clarity cap SA a few years back as they lost the top end for a while and suddenly it emerged after a couple weeks of use. So I guess I shouldn't be to shocked.