I’m comparing apples to apples.
UK Attack on SZ 5 when it’s 2 transports, submarine and destroyer is almost identical to UK Attack on SZ 7 with the same gear, maybe even with the extra submarine.
Both are bad moves, IMHO. The extra submarine is worse, but even without it, you are trading 20-35 IPC worth of valuable equipment from England for 36 IPC worth of equipment that would be nice to have for Germany, but no huge burden if it is lost.
Kinda exactly what CSub is FINALLY saying that I’ve been repeating like a broken record for over two years.
Obviously the carrier changes things. I never suddenly changed my mind and said we should attack SZ 5 if it had a carrier and some fighters in there too.