What sort of weight can it lift comfortably? I'm thinking about a 640 as it ticks alot of boxes for me.
Is yours a 2 speed model?
Yes 2 speed.
I'm still getting used to it's limits.
In terms of today, it lifted to full reach comfortably and felt stable enough to move forwards and backwards considering they were 6m long. I also had to lift them over some brick pillars and trees to get them in and it travelled OK with it fully up (didn't need to use extender to clear them)
It will pick a 1000kg pallet up and travel with it, not sure how far you'd lift it before face planting. It'll fill the 4in1 and I've had that extended up and out ok.
It handles a bulk bag on the bag lifter quiet well. Especially if you go up before extending and not the other way round.
Float has been disconnected on mine, not sure why but I think I may look into why just in case I get any other attachments.