Puzzler,
I hate to see a good question go unanswered (and it is a good question), so if you can tolerate a generic answer, and sort the wheat from the chaff, I'll give it my best generic shot in a day or so if no BLT qualified person comes on board.
I'm absolutely staggered that
enicalyth didn't have a major contribution. Come on big
E, give it a shot.
Personally, my only knowledge of BLT is Bacon, Lettuce, and Tomato sandwich
Whilst we wait for Mr. / Mrs. / Ms BLT to respond, back to the next riveting instalment of "Farting in the Cockpit" (i.e. Augmented thrust)
Regards,
Old Smokey