i have several C-cell & D-cell sized aspheric mags, using also differing numbers of cells.
since you're asking someone to make one for you, we'll go with a very simple upgrade that you can build yourself from some easily obtainable parts.
these simple upgrades are really very simple to build yourself. on a scale of difficulty from 1 to 10 (with 10 being the most difficult), these are a 1.
haven't compared it side-by-side with the Tiablo model that you mention, but i recently saw some beamshots and the Mag appeared to have greater throw when focused down to a spot. again, not sure of the aspheric Mag's precise configuration/specifications.
here's what you can do to make a simple 2C aspheric Mag light:
1. buy a 2C Maglite from somewhere OnLine or brick-and-mortar - your choice & simple enough to obtain.
2. buy a TerraLux LED upgrade (from MattK, of CPF fame, at BatteryJunction.com, for instance) - TerraLux has at least two types (goin' fr/memory here, so please investigate for yourself; don't take it as "gospel") - a 2-or-3-cell version of a 3W (and a 5W - can't remember), and a 4-to-6-cell version of the same LED upgrade. [going w/LED, though i also have incand Mag upgrades, allows me to NOT need a combo all aluminum heatsink/reflector for these particular aspheric Mags, nor a new switch to handle the current used in this "upgrade" - some consider LEDs ALONE to be a "downgrade" and this is, in one sense (throw, not burntime), true.]. simply remove your original incand bulb and screw in the the LED upgrade.
[NOTE: there is much better performance to be had by going with 3+ cells versus just two cells, but 2C is the smallest and lightest]
3. buy a 52mm (IIRC) PCX/aspheric lens from SurplusShed.com. remove the bezel and lens from the Mag and replace the original lens with the PCX/aspheric lens and tighten it down using the original bezel. [please note that this lens could probably be used with any Mag - stock/original configuration or nearly any upgraded Mag.]
YOU'RE DONE!!!
just used it last night & it still retained the Mag's flood-2-spot focusing ability.
NOT the brightest aspheric Mag that i have, but it's the smallest and lightest.
compared to a P1D-Q5 that i also had with me, the modded-Mag greatly outperformed it (when SPOT-focused) at distances of 200'-250' (~61metres to ~76metres). also, i was using very old, partially drained Duracell 2C alkalline batts also (they were beyond their expiration date by a couple of years!!!), though i'm NOT sure of their actual SOC (state-of-charge). furthermore, the rain yesterday evening scattered some of the light, making the performance less than optimal.
was trying to spot my neighbors' 100lb mixed-breed dog in their fenced in backyard (which i'm taking care of while they're away). no problem spotting it even when his eyes were NOT reflecting any light and it's a dark dog in the midst of some vegetation.
NOT as bright as my 2C (powered AW C-size Li-ion cells) Mag hot-wire with 5Mega 2.5" Throwmaster bezel/reflector/heatsink combo) or a BlackBear Borealis, but it should have much longer burntimes than either of those, i would imagine.
it's a simple to do, relatively inexpensive mod for a Mag. even a klutz like me could do this mod in less than 5minutes. this simple version of an aspheric Mag really does make a difference in the performance of the Mag. call this an "entry-level" Mag mod.
at some point, you may want more power, and then the mods can get a bit more complicated, including "gutting" the Mag host.
hope this info proves useful.
