i will be highly impressed if this new BnM toplight is better that the cateye
Jags, I think you'll be pleased with the brightness and visibility of the Toplight Line Plus. It is "different" from the CatEye in producing a band of
horizontal light that is highly visible, rather than points of light. This makes it easier for a closing driver to judge distance from you, according to B&M. Maybe, hopefully. By the way, some of the LED light leaks into the part with the reflector, so it also glows a bit and is not totally dark from inside.
My worry was whether it would be bright enough to also be daylight-visible, so I had someone take a photo from behind me on a cloudy day. I've attached the result again here (cribbed from my Sherpa gallery).
You should show up fine. I paired mine with my PlanetBike Radbot 1000, so stacking your CatEye LED with the Toplight Line Plus should give a similar result.
Best,
Dan.