lol - made a small tool to unlock / lock the bulb holder. 32mm sink waste pipe x 60mm long. Just cut 2 notches in the end. Works a treat :happydance:
I know it's been a while since this thread had an update, but it was the only one I could find which detailed the problem I encountered. I spent ages earlier today trying to loosen the bulb holder and what I found really helped was a small paint roller body which gave enough of a 'hook' to fit in the tight space and allowed me to push/pull as required with the necessary leverage from the handle. Didn't take much effort at all and saved a few more bloody fingers! 2/3 minutes of getting both bulbs out vs 20 minutes of trying beforehand.