Thanks Brian.
The full spectrum thing is that both the UV and the IR filters have been removed. You select you bandwidth of choice with the use of a lens filter rather than having the removed ones replaced with one over the sensor, which is how a lot of conversions are done. It was originally the b&w side of things that I was interested in, to indulge my love of trees, but the false colour stuff is fun and I haven't seen much street photography done in IR, so I thought it was time to change that! Actually I've been doing a fair bit of that with b&w too.