For those interested in using aluminum servo horns, I've confirmed that TLR1557 (25T), TLR1556 (24T), & TLR1555 (23T) can be used for the DIG, as opposed to the AXI232016 parts (except for the two pieces to mount the servo to AXI321005). Any micro servo that fits, and has fairly equal specs, should work...plus, you won't need to servo saver piece that comes with SX107. For the steering servo, TLR341008 (23T) & TLR341009 (25T), designed for the TLR 8ight-XE, will both work. Unfortunately, Losi never made a 24T version, so, if using a 24T steering servo, you'll have to search other sources.
Knowing that Axial & Losi worked together quite closely on the Capra, having posted, myself, several part number comparison (where Axial just "renumbered" certain Losi/TLR parts, and having read others having confirmed Carissa "shared parts", that's why I figured there had to be aluminum Losi/TLR horns that were equal.
As for some of my earlier posts/questions, those of you already established in crawlers should expect as much...you were all newbs at some point, and (probably) asked the same "I haven't got a clue" questions. For those with 'patience', who are willing to take the time to thoroughly answer newbie questions, on behalf of all newbs (past, present & future), thank you.
~ More peace, love, laughter, & kindness would make the world a MUCH better place