Yeah I got it out in the end, exactly like you said by putting a rod in the back. Although I couldn't see a way to tweak it...might just be being stupid. But anyway yeah I got it out
The only way I can get experience is by trying ;). I couldn't find anything else about this type. I don't care about them really, super cheap I'm not too bothered
I just want to tweak it so it's just a bit more powerful if I can. but i'm not sure how to open it without destroying it. I have two of these and I don't mind scratches or marks on them. just not sure how to get in to it. I've tried getting into this one but with my lack of knowledge can't work...