There are many RCB stars for which we don't have good BVRI photometry when they are at or near maximum light.
# Stars At Maximum NOW:
AO Her , SU Tau, V2552 Oph, V3795 Sgr, V4017 Sgr, V517 Oph, V532 Oph, ASAS-RCB-5, ASAS-RCB-14, ASAS-RCB-16, ASAS-RCB-17
# Stars Rising - getting near maximum.
V391 Sct, ASAS-RCB-7, ASAS-RCB-18, ASAS-RCB-19, ASAS-RCB-21, IRAS 1813.5-2419
BVRI photometry of any of these stars while they are at max would be very useful.
I am willing to observe some of the stars mentioned from my remote observatory in Chile.
Please give priority to 5 of the stars.
We met some years ago at the meeting in Armagh. As you know I follow V348 Sgr since a couple of years in BVI filters. Data are with the AAVSO database.