Its worth noting, that the first author of Battletech also drew this scaled image.
Which is slightly smaller than this scaled 9.63 meter tall SHK based on the Dougram's canonical height upon which the SHK was based.
So 9.55 doesn't seem like a stretch, but remember that it was a scout vehicle, and the one depicted both appears to be old (possibly even shk1), and that the SHK 5 series is 2 meters taller than the SHK 2.
SHK 3 is just a modified 2 frame so it isn't much bigger if at all.
An older model of Shadowhawk, which is a long range reconissance mech first and foremost, is hardly a judgement for scale.
However, the original blueprint of the Warhammer (google it) comes out to the 'Mech being
36.875 feet or 11.2395 meters excluding "orientation beacon lights" with the highest point being the vertical missile launcher. (Note the 12.6 meter tall Timber Wolf of the Omnimech scale is measured to the highest point of the launcher, and all mechs on that scale are measured to the highest point regardless of what it is, short of antennae).
Note: Despite it saying that the image is 1/20 scale, printed at 50% size (1/40) comes out to a very different thing as the pilot comes out to barely more than 4 feet, but the measuring scale provided telling us what 5 feet is happens to be the same size as the girl.. So its 1/20 scale is bullshit. It might be to scale, but its scale is not 1/20.
Scale determined by taking a measurement of the printed measuring scale of X = 5 feet, establishing what = 5 feet, measuring the mech, and then plugging that into a ratio calculator to get the total feet.
The Wasp blueprint (after comparing the different pilot whom is the exact same height as the previous female pilot at 5 feet flat) is 37.1875 feet tall or 11.33475 meters tall.
Note that the blueprints have most of the original mechs from Macross, and that their heights vary quite a bit and appear to have not been coordinated, as the Locust towers above the Warhammer drastically and the macross height of the Warhammer towers over the Warhammer, so it isn't based on that. (in an original measurement based on the "scale", the Marauder's male pilot was 4'8" and the mech came out to over 16 meters tall which is beyond canonical heights. Corrected it'd easily be well over 18 meters tall.. which is still non-canon. So the original blueprints should not be considered as factual.
The remade Battlemaster blueprint, though, is at the exact same height (on printed engineering paper) as the original. So take that as you will.
Mechs do vary in size with the Hollander's height at nearly over 14 meters if standing straight (note the legs, and the fact that it never stands straight; the legs are to absorb the recoil of the Gauss Rifle; a weapon that typically can't be handled by lights and the Hunchback falls over when using), the Wolverine around 11.5 meters, the squat-legged Catapult around 9 meters, the Stilt-legged catapult at around 11-12 meters (look up Catapult and you'll see the two variations; one is for low level terrain and the other is for mountainous and canyon terrain)., meanwhile the Hunchback is noted to being one of the shortest medium mechs to exist though the Nova at 8.3 meters is noted to be shorter than the Hunchback, while the Centurion if ever seen next to the Hunchback is usually described as around 10 to 11 meters tall.
So the SHK at 9.55, while it seems short, seems to be a modest lower-middle ground.
No mech in Battletech is as tall as a gundam from the Universal Century timeline according to the Battletech Battlemech Manual's 7 to 16 meter scale (which I think is to include the Firefly which was once described as just under the height of two semi-trailers stacked, which two 13 foot semi trailers stacked would be 7.9248 meters. And I was told once that the Locust was described as about 7 meters in an audiobook of one of the earlier Battletech titles, which also featured the Martell model 5 medium laser as a 6cm red beam laser.)
So mechs are smaller than depicted in here
https://www.youtube.com/watch?v=lJBT74plP6Aor here
https://www.youtube.com/watch?v=q4kEuNfbTWc(Though those Guntanks are within Battletech scale-sizes, however as far as I know, nothing was taller than the Executioner Omnimech during the Clan War, so while the Guntanks are 15.6 meters tall, the Executioner is 14.4 meters tall, and thus the tallest, scariest thing during the Clan invasion is dwarfed by one of Gundam's most pathetic mechanized mobile weapons; however in terms of firepower Battletech's mechs scary fusion reactors of similar power outputs to gundams, if the power needs of Battletech's large lasers are any indication).
and can be about 1 meter smaller than the Ingram depicted in scenes such as this
https://www.youtube.com/watch?v=xybWsAk5oVk