Not sure currently but the Discraft site recently had max weight JB roaches! I did not bite so can't comment on the plastic but they were listed under the plain old JB roach as in stock.
On the normal jawbreaker note, I saw some sick looking and feeling jawbreaker zones and challengers at the store, super cool colors. Hopefully they continue to run this plastic!
I've never ordered from the DC store but they were showing out of stock today. I also saw some JB Zones at the shop and they were nice. They can run it if they wanna.