A recent change to the ASAT Classic models ...

I had mentioned in another post, that G&L was going to replace the Delrin string block with individual metal string grommets.

On 1/23/2016, G&L posted this on their facebook page:

G&L Musical Instruments The Delrin block has recently been discontinued. Dealers told us they prefer us to use traditional ferrules.

Here is an example:

my new BB is like that

I would definitely I say I prefer the look of the individual ferrules. Might also be a bit more resistant to string pressure than delrin.