Anyone spotted many BF deals? I've not had much time to look today. But I've taken advantage of the Wiggle Sales the last couple of weeks a number of times to stock up on stuff. Some cracking deals there on things... Almost back to how Wiggle used to do sales!
You'll love the TraceR. I've a bunch of the earlier basic ones without some of the extra tech (inc REAKT). Really rate them. Probably have 5 or 6 of them! Gradually replaced all rear lights with them for myself and the other half, then also had a couple of extras I used on the kid trailer. So have spares and spares! Only got 1 of them which is probably the oldest and doesn't last for 2+ weeks of use on a charge (mode 2). That one must be 6 or 7 years old by now. So incredible lights for the money - even though they might seem quite pricy. Great build quality and reliability. I've taken one apart, looks fairly straight forward to change the battery in them when the time comes.
Although I have broken 3 of the rear brackets. They're easy to buy a replacement. The seat rail mount you have is good, but fitting is so tight you'll not be unmounting the light very often with it. Daily would be a chore. Took mine off when I changed saddle so I could mount saddlebag.