I wish it was just a pre-amp thing.
For a year, I had been using the IC7000 pre-amp with SignaLink Rx=9 (max=11).
It worked fine, I had about 1000 JT65-HF contacts.
Starting 10 days ago I had to turn off the pre-amp. and dial down SingaLink Rx to 3.
Otherwise, its way over-gained. There is a lot more broadband static as well.