Importing nested XML using Feeds XPath Parser

I have some XML formatted as such:

<item><title>Name</title><id>12</id><upgrade><id>13</id><level>2</level></upgrade><upgrade><id>14</id><level>3</level></upgrade></item>

Ultimately from this example I want 3 nodes:

• Title: "Name (1)" GUID: 12
• Title: "Name (2)" GUID: 13
• Title: "Name (3)" GUID: 14

I'm quite happy to do 2 runs of the file if necessary. I have one importer at the moment which sets up the "Name (1)" items. This works perfectly.

I have a second importer set up which I can successfully create the secondary "upgrade" nodes but only if I use \item\upgrade as the context, at which point I lose the title element so the nodes come through as " (2)", " (3)" etc.

If I use \item as the context like the initial importer, I can't seem to loop through the upgrade XML nodes.