Hello Max. Nice update - you’re definitely making nice progress. FWIW, I agree with your assessment of Fastrack. It wasn’t a great fit for me in the context of my layout (16’x36’ w/5 separate loops) - way too noisy even on Homosote. Like you, I’ve spent a lot of time recently redoing it, but I switched to Atlas. Not trying to start a track debate in any way, but in the context of my layout it is much much quieter after the switch. If noise was your challenge, you may give it a try if you have to do more repairs.