Dave,
just looking at the spec on these machines.
Were you not tempted to go for the top of the range dual operator pro 25 model ?
Its only a £1000 more than the one you have picked, and weighs only 7kg more, like you say,same footprint.
Not much extra to pay for a beast of a machine?
Cheers
Chris
ps
for anyone who is interested prices are below, they include poly prop saddle tanks, hoses and wand.
Pro 15 (15 HP) £6250
Pro 18 £7348
Pro 20 £8398
Pro 25 ( dual operator) £9450