Yes matey, 18t Daf,telescopic arms ..... have lost count of wooden blocks i've broken on my jack legs ...... had a goodun yesterday, had to lift a skip off a verge, 18 inches from a lamp post ...... well it was full of soil and heavy,pavement sunk under the weight, lampost started to sway .......... thats a brown trouser moment ...
We know if the front end starts to rise we've got about 8.5 - 9 ton in the skip.
And yes, i have had the front wheels about 5 ft in the air many times ........
Not actually found its limit yet, its usually the ground beneath the legs that gives way first!