What would be the best way to remove a rear spoiler from a vRS estate tailgate without damaging either spoiler or tailgate? Anybody got any suggestions?

Assuming they are bonded on? (otherwise just take the bolts out!)

Something like fishing line can be used to cut through the sikaflex, once it is removed the tailgate will need the residue cleaning off though.

Yes it is bonded on, no bolts. Was thinking about using fishing line too.