Thanks guys. The method employed here involved aiming at where Venus should be according to planetarium app, but with a Baader film filter on the scope so the Sun's edge could be used as a guide. Great for getting focus right too. I used a 13T6 Nagler for that. Obviously the Sun was placed so that it had all but disappeared behind the gutter when this was done, and once it had gone from the FoV, AND no direct sunlight was reaching the objective, the filter came off, and...bam, there she was. Careful centering and replacing the Nagler with a Pentax XP3.8 (40°AFOV) finished the job. This sounds tedious but is easy with this setup. The scope & tripod light enough that this process could be repeated easily in less than a minute by moving the whole telescope as required. The "drift" method would work too, though it would take longer and works best when the target trails the Sun more or less exactly. The latter wasn't the case with Venus at a different declination to that of the Sun. Also used a UV/IR cut filter for an extra bit of notional safety.
This one was easier
than the one 3 years ago