Hi Stu,
I had a chat with RZ today about this. Most of our work is compact, where I could pull up and we could work from the same van on separate properties. Or on larger work I could start at the awkward parts (say the rear) and she can have the easy access.
Or, on other places it could well be a case of she does the easy stuff, working from a van, and I use the backpack for the awkward bits.
I guess we're going to have to relearn our work and we'll have a period of a few weeks where we'll 'test and adjust' (there's a good ol' military phrase).
Wor Lass doesn't work full time anyway, 3 or 4 days per week from 9pm till about 3pm; so anything that's not suitable for both of us, I tend to do by myself anyway.
I don't mind buying extra kit, such as hosereels, pumps and stuff; 'cos it's good to have spare, so worst case scenario is that she works from the van and I use the backpack; then I'd be cool with that too.