On Fri, Oct 11, 2019 at 09:27 Phil Pugliese (via tml list) <xxxxxx@simplelists.com> wrote:
Well that means that the overall TL limit for J-max is violated in the 1st four examples.

AFAIK, the J-max for TL9 is ONE, for TL10 it's also ONE, for TL11 it is TWO, for TL12 it's THREE, for TL13 it's FOUR, for TL14 it's FIVE, & for TL15 it's SIX!

That's why the Zho's are limited to J5max & Vargr & SwordWorlders to J4max. (unless they can acquire foreign equip from the 3I or some other polity with a higher TLmax)

Gosh, Tom, you've managed to unearth a 'bug' that, it seems, no one has noticed for DECADES & DECADES!
Actually, I noticed this a while back and pointed it out to Jeff in a proposed addendum to “Build your own road”, and this has also been noted by Omer-Golan Joel of Stellagama publishing, who deliberately incorporated it into “Cepheus Light”. 
And the fact that all further publications until Mega Traveller (and I think some later adventures) did not make reference to the drive capability by TL table included in CT HG, combined with the explicit statement that the shipbuilding rules in CT LBB2 (and Starter Traveller and The Traveller Book) are good only up to 5000 tons, is the basis for my prior argument (See way up thread) that the TL limitations in High Guard are for custom drives rated for over 5000 tons (or possibly for drives larger than the builders TL). Of course, by the time of MT the Jump by TL limitations had become canon, but that was in the context of the 3I, and mostly by because writers just sort of assumed that High Guard superseded LBB2.