well, your work doesn't show any difficulties resulting from your hand problem. all you show here is very, very nice. welcome to this mad house. tyvm for shaaring your work. your borders are great. i like the "soft" look to some of the pieces. yer shading is quite nice. not much else to say.
the graavermeister will serve you well for a long time. i wish automobiles were made like the standards of quality grs has maintained in its product line.
the inner and outer elements should "flow" gracefully out of the backbone. a few of yours come out at a too-steep angle. this will tend to disrupt the so called flow of your design. this is likely a drawing problem rather than any other. as jj mentioned, the backbone looks very good.
welcome to the forum. not sure about the extension tube, but the .5 objective will cut your power in half. the .5 also will double your working distance giving more clearance for your hand.
you have many things to get a grasp on. chief among them is developing good drawing skills. tool...
for those using the round graver stock, it's important to grind a bit of a flat on the blank. this allows for accurate indexing in the sharpening rig. otherwise, it's a pita tryin to get repeatability when sharpening.
i'm not sure there is a"one size fits all" type answer. different engravers may have differing suggestions as what works best.check in the tips section on graver angles, sharpening, and h&c work.
okk, that my be the trick. i just always eyeballed mine. for me that worked. if my eye saw a bit of deviation, just a tiny touch would make things right. if you have a way that works, no need to change your mo.
grs sells cold rolled practice plates. a quicker, and way cheaper source would be your local scrapyard or machine shop. "drops" of a suitable size can be obtained there for free or almost free.
microscopic ? at what level ? the most perfect geo one could achieve with the grs or lindsay systems would look like elephant poo if inspected at about 50 or 60 k x.
i have used them to a limited degree. curved liners , like many other tools, seem to be favored by some, and avoided by others. i never met an onglete that ever worked in my hand. as for push work, all your time with soft metals is rather unchallenging compared to gun work.after years of such...
well, mitch i dunno. magic maybe? most would think it insane to even try this. yet the gentleman does such amazing work in this medium. his sculpture, even at this scale is simply incredible.