Well as far as comparing it to a national, if you lineup a picture of this one and a national 33ton you almost can't tell the difference!
I love how strong this thing is for it's size, I love that it has no tailswing from the counterweight, I love how slowly it booms down, but the worst thing about it is that it has a single stage hydraulic pump!!! who the hell builds a "crane" with a single stage pump?!?
this means that you're only supposed to do 1 operation at a time, which maybe sutable to something like a chipper, but not a crane where you are constantly doing 3 things at once like booming down, winching up, and swinging.
it would probably cost somewhere around $25K to upgrade this thing to a 3 stage pump and the proper control bank, which I guess is why the Elliotts are so much cheaper than the other brands.
And I'm not sure the reason its still rated as only a 40t, maybe with the extra boom length it can't reach the 6' radius so they just stuck with the 9' rating.