I agree the Randall Model 18 (and the Model 14) feels way too blade-light in the wrong way: Absolutely no chopping power...: They are listed as 12-14 ounces (broad tolerances), but mine feels more like 10, and fairly blade light too... On the plus side, it doesn't feel flimsy at all in the guard or handle-blade junction, as the massive radiused silver soldering is really very impressive around the guard...: The real reason it is so light is the blade is 3/16" thick and less, and the big grind bevel of the 18's back robs even more blade weight, while also making the saw useless on wood...
The big spine bevel even makes batonning quite impractical, even more so if the saw is there...: It looks good, but the back bevel is just not a functional design... I know the back is supposed to be for thin metal cutting, but a plainer version without back grind would be a much better, heftier knife for most uses...
That long back grind bevel is probably the main reason it is so blade light, but there are other minor causes I find annoying: If the knife is advertized, as far as I know, as 1/4" stock, why is it 3/16"? Also, on both my Model 18 and my Model 14, the blade is 7.4", and one tenth of an inch is not exactly peanuts: My TOPS Hellion was advertized as 9", and it is so on the dime... Also my Hellion is not heat warped into a very slight curve, like my 18...
The funny thing is my Model 18's light weight was made even lighter by having to grind off half the guard to make it look centered (given the manufaturing precision was so poor, it was completely both askew and off-centered from the factory)...: It really is like 10 ounces now, and by mating it with an Eagle sheath, it suddenly found its niche(!): The Eagle sheath can take a shoulder strap, and it is now light enough to be carried under arm in perfect confort: It has worked out beautifully, as before I ground down its badly oversized guard (another really bad design error, fortunately avoided on their Model 14), the knife was completely incompatible with the nylon Eagle sheath, and thus the shoulder strap...
With the ground down guard, the knife has noticeably less heft, but the shoulder carry makes this completely worthwhile, as it has now reached into a sort of "concealment knife" category, where such compromises are not only acceptable, but an advantage: 10-11 ounces is the upper limit in weight for a shoulder strap...
I do not find the Model 18 and 14 to be really serious knives for outdoor use, given the blade-light feel, but their extreme edge thinness does make them very good every day users: This thinness is really unique among largeish fixed blades, and makes Randalls a really useful buy, despite their design flaws... Also, the edge thinness encourages use, as you know they will not be hard to bring back...
Another problem they have is that the points are so thickly ground they need to be sent back for a re-grind... When I sent my Model 14 back to Randall, they charged me $40, but did a fine job thinning down the point, which was thick enough for no-sheath knife fighting training!
I have since learned of their Model 12 with a 14 style clip grind (I dislike curved bowie clips), and I think I might give that one a try if I can find a non-stag handle version: A knife this large with an edge this thin might be able to chop wood nearly silently! Of course, the unique forged 440B stainless is a great attraction as well, as almost nobody else does this...
If everybody did edges this thin I would ignore Randalls, but since so few do, I don't feel like spending months thinning metal down, and then not using said metal because of all the work I put into it!
As funny as this may sound, sharp Randalls are easily fixed or replaceable, while a sharp Hellion is not...
Gaston