I've read this with interest, as one who embarassingly had to re-sit my test a few years ago when I failed first time due to non-application of the park brake.

I would like to make the point that I think the controls nomenclature is critical in trying to change perception and ultimately the HSE requirement.

A PARK BRAKE is for use when parking the vehicle. It may be hand, foot or electrically applied.
A SERVICE BRAKE is for slowing or stopping the vehicle while in service. It is exclusively foot operated.
An INCHING / BRAKE control perfoms a dual function of interupting traction and applying the service brake.

I suggest that driving test requirement should be that "the vehicle is stopped under full operator control before hoisting, or lowering". This can be acheived and demonstrated to the examiner by
A) a visible aplication of the park brake,
B) application of the service or inching brake (via illumination of the brake lights),
C) or auto application of a park brake (via a dash panel warning light). This auto activation of a spring applied / electrically released "pancake" brake is common on many warehouse products and is a feature of the new Yale ERP20ATF sit down rider three wheel counterbalanced AC truck. This truck in fact does not have a mechanical park brake lever so it will be interesting to see what an examiner makes of it!

Obviously in the real world, experienced, productive drivers will continue to raise forks while driving into the stack, but at least training and testing to the above suggestion will promote "safe" working practice, while not enforcing time-consuming excessive use of the park brake for a function it was not intended for.