Thanks for the comments guys. Should have answered earlier.
Let's see, I've only run with the baffles in. They are loud enough like that. Haven't discoloured, but I never ran them that long with stock jetting. I've switched to Unipods and have swapped in 145 mains. Hope to run them this weekend.
I'm not going to post a sound bite. There are a couple on the web already if you do a search and IMHO sound bites are worthless for reference.
If I can't tolerate the sound anymore (or the neighbors start frowning) I thought I might try these baffles: https://www.denniskirk.com/khrome-we...prd/H44562.sku
From what I've seen of the UK MOT restrictions on Wheeler Dealers (big fan of Edd Chyna) I highly doubt these pipes would pass the sound tests.