I’ve put an ARF bracelet on the BPSD, and one of the SEL was loose (6 o’clock side I think). It may be a spring bar issue, but I didn’t have any spares to try.
Besides that, the ARF bracelet doesn’t have polished sides.
Thanks for the info also, there are some sharp edges on BP bracelet. Do you think they will just break-in and smooth nicely after some time of usage?