ZS3/ TZ7 vs. ZS20/TZ30

Just received the ZS20 as a birthday gift from my lovely wife.

I'm about to put these two to the test

Indoors...low light ....using a tripod....2 second timer....no O.I.S.

Testing at various ISO settings

Testing wide open and zoomed out to around 250mm (max for the ZS3)

Testing in P mode as well as iA mode (which I never use...but might, with the ZS20)

posting results within a day or two (hopefully)

Anyone interested?

ANAYV