I would order the two sizes I mentioned above from Ballet (TCS and TCM). These work pretty well for beard cases. Actually, it's with the really gigantic hairs (follicles) that the tapered needles are superior ... and, for the exact reasons you state.
I can't tell you how PLEASED I am to hear your understanding of the follicle, i.e., the location of the bulge in relationship to the "anchor." (And in a longer follicle, "exactly where the bulge is" becomes a BIG issue. With a bare needle ... no problema.)
I watched a video yesterday and the electrologist was STILL only "hammering on" about the papilla (only). And, yes, the "anagen only" shite too. So many of "us" don't have a clue.
I will also say that those working with the TG community always seem to end up being the BEST electrologists! If they are TG themselves ... well, they seem (to me) to be at the very TOP of the list of superior operators.
I suppose "being there" gives one desire to get-it-right ... it's not just a hobby or part of the "beauty trade."
For example, I am now 75% finished with a beard case (average moderate beard). We are at 34 hours now, and this case will "come in" less than 60 hours total (that's my average over all these years). I don't think that's a bad average for beard work ... using my "slow method."