JRB (Jacks R Better) have announced availability of a new 3 season model, the Greylock 3, to be followed by a loftier (loftier? Hm, it will hang lower....) 4 season version.
I hope they'll describe how they do "dual differential" with the baffles running in the Jacks' way -radially -- in the JRB vendor forum.
Looks good.
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