Audio Craft AC-4400 and related AC tonearms


I have so many Audio Craft headshells that i start thinking about Audio Craft tonearms.
Something like the Audio Craft AC-4400 silver color with removable armwands.
Must be a high quality tonearm, Japanese classics. The problem is that i’ve never tried them.
Anyone can comment? Would be nice to read more opinions.

Here is a picture of the AC-4400: https://i.ebayimg.com/images/g/oNcAAOSw0HVWADXg/s-l1600.jpg

There is also AC-3300 model: https://www.vinylengine.com/library/audiocraft-ultracraft/ac-3300.shtml

128x128chakster
I've been listening to an acutex LPM320 (compliance 42!!!) in my 64s with a Dynavector head shell which is lighter than typical FR headshells. It's a great match, contrary to expectations.

FR tonearms bear a sticker on the arm wand that says, "silver inside ", if they're wired with silver.

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@sampsa55 

I think both the fx- & s-would be great with FR-7, though there seems to be a general preference for the s-models. I have both the FR64fx & FR64s, but don’t have FR-7 cartridges. I have used both with SPUs and some other cartridges quite happily.

Great. Do you use them with optional heavy counterweight called W250? 
I have the W250 for FR64fx, which I think was needed for SPUs as the default weight was too light. The default weight for FR64s is very heavy, but I have a lighter one for it. 
@sampsa55 I decided to try FR 64fx, it will be my first FR tonearm, it it works with SPU then it should work well with FR-7f, but for the rest of my cartridges i will have to find lightweight counterweight (i have the original headshell and heavy W-250 counterweight).

But what is a part number (light counterweight) ?

The AudioCraft 3300 or 4400 are the next arms i’d like to try, hope i will find them.