V405 Vul: probably not an SU UMa star Recurrence time of (long) outbursts appears to be too short. I couldn't find superhumps in the 2000 AAVSO data. ASAS-SN data: https://asas-sn.osu.edu/light_curves/8363896d-75bc-46d9-92b2-e53b9289ed28