o.k., will have a go at it. reflection should be realistic, e.g. not showing full emitter, which in poser burns out to white at ambient 2 - 4, depending on colour).  there may yet be some way, if I can find photo of neon tube being reflected.  I suspect there is gonna be burnt-out centre line, due to camera response, but that it fades to colour away from centre (edge-blend).  is one example why they added tone-mapping.