Which cart works with Ortofon AS309S 12inch arm

Based on my limited research, there are 4 diff headshell options: 12g, 13.5g, 8.5g and 16.8g.
The std counterweight is 18-25 grams.
correct me if i'm wrong.
if a cart is say 7.1g & I use a 13.5g orto headshell,that gives me a total weight of 20.6 grams.
So, that should in theory work correct.
Just in same way if a cart is 11g and I again use their 13.5g headshell. That totals 24.5g, so i'm still within that 18-25g range.
Are these assumptions correct ?
I guess its best to have multiple headshells of different weight so one can have more flexibility ?

I have the AS309S on my Raven AC-3. Almost all cartridges I have tried on it sound good.

As Raul said, with removeable headshells, the world is your Oyster with combo's.

Empire 1080LT MM cart sounded really nice.

I currently have the Ortofon SPU Royal GM and its sound glorious.

enjoy

Interchangeable Headshells will give you more options. Different folks & have different strokes as they say. May it be pop, rock, jazz, classical or vocals you will have a cart that will do justice to your records. May it be audiophile nor regular/old pressing.

goodluck

Thank you for the replies!

Fld, 'risky buseness' to recommend some cart while Raul already 'have spoken'. But I was very curious reg. this
Phase Tech P-3G. On the one hand because this cart got so
many awards in Japan. On the other because this cart caused
some,eh, 'panic' in our forum. In particular among the owners of 'the big guns' (>$ 4000). So I bought one and was
very disappointed at first. Until I got the Reed 2A that is
(27gr.). Since then I an very happy with the 'combo'. The
other (combo) is Triplanar VII with Benz Ruby 3s.

Regards,