Good compromise - insert right between the brood nest and the honey. Let them decide how to use the bar.
Good thinking ...
Related question: Generally speaking should you try to avoid having a full comb of capped honey as the first bar after the broodnest?
Yes. More detailed answer follows ...
I am not using TBH's but the concept is the same when growing a nuc into a 10 frame box. Also assuming you are expanding the broodnest or working on getting more drawn comb.
I keep moving the honey frame(s) as the hive expands until it is in the #1 or #10 position in a Lang.
With a Lang nuc there isn't the same problem which later develops within a Long Hive (TBH or otherwise). Yes - the bees want honey and pollen right next to their brood nest - and that's the exact cause of a problem which then later develops ... because such a comb/frame in that position then acts as a barrier to laying, and thus defines/fixes the ultimate size of the brood nest. That's what the whole OSBN concept (which used to be called "brood nest spreading" back in the 1860-70's) is based on.
All Horizontal Hives (except one) have a basic flaw in their construction - which is something I'm currently involved in developing a solution to - and can most easily be demonstrated by a 'mind experiment':
It's often said that a vertical beehive is more appropriate to the behaviour of the honey-bee than a horizontal hive - and this is usually put down to it being 'vertical'. But I would offer a different explanation ...
So - in your mind's eye - look at a classic vertical stack of boxes: say a Langstroth stack or a Warre stack (it makes no difference) with the frames within those boxes facing you 'side-on' (as opposed to 'end-on'). Ok - now rotate that stack down onto the ground, such that it becomes a horizontal hive: exactly the same beehive, only now in the horizontal format.
Now - take a look at those frames (or combs) through what has become the top of the hive (conveniently transparent - such is the nature of mind experiments

). You will notice that
the frames/combs all run along the length of the stack of boxes, NOT across it's width. And
THAT is the fundamental flaw which all horizontal hives have, with the singular exception (afaik) of the Die Bienenkiste Hive, which is based on the fixed-comb long hives of Anton Janscha from 18th Century Europe. It is by stringing frames/combs across the short dimension of a beehive - rather than along it's length (which is more-or-less how the bees would draw them if given a free rein to choose) that a situation is created which then requires beekeeper management, such as opening-up the brood nest to stop swarming which is such a frequent consequence of 'leave-alone' horizontal hive beekeeping.
I'm suggesting then, that it's both the barrier to brood-nest enlargement and the inferior traffic-flow of the horizontal hive which are the reasons why vertical hives present as superior performers, and not because they are vertical,
per se.
Hope this explanation helps.
LJ