Doc,
The problem, the confusing was one of relativity. You didn't say whatth eoil pattern & amount was and which balls with which drillings were rolling too early. For instance, the Labyrinth for most people and most drillings is a very early rolling ball. So for it to be close to what you want/need, you must have polished it a good deal. If you have a low axis tilt and not a lot of rotation upon delivery, most balls are going to roll early for you.
You need less surface than average or more oil than average to get that length. I do also.
It's a balancing act.
The relativity equation is something you need to judge: speed + low axis tilt = what surface at what level of polish or grit, with what core and what drilling in order give you enough skid and enough roll. Oftimes, a little polish is all that is needed.
One suggestion:
As a counterpart to the Labyrinth, Morich developed the Minotaur, for almost exactly what you are asking: more length with strong backend. With a stronger cover than the Laby, the Minotaur's core was designed to give more length with the same drilling. FYI its length is amazing given its cover.
Other suggestions:
I also get length for similar problems, as my tilt is simialr to yours, from several balls with Columbia's SuperFlex solid cover over medium RG balls in the 2.50 - 2.55 range (DynoThane Concept XXtra is great for this, but all but impossible to get; AMF Hawk, with slight polish is great medium ball; some are still available on EBay)
and solid resins using Storm's Accu-Tread cover. Hot WIre is great medium ball, with length and backend, for a solid. Great match of cover and core.
AZO's light load solids all get superior length and most are for medium oil amounts, even with strong drillings. The Blue Fire will definitely meet your requirement.
I suspect the new RG Apocalypse will also serve your purpose, but I have no experience with it personally.
The original Wicked will do this; the Wicked B/R/T may need a l=slight application of polish.
That's all I can think of right now.
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"Just because you can do something does not mean you should do it."
"No good deed goes unpunished."