To anyone dumb enough to follow my advice previously:
I have now had numerous punctures due to the Slime liners eroding away through the tube. The location has always been to sharp edge where the liners have been cut off.
So I thought I was smart and used some duct tape over the edges to smooth them down. Then I was dumb enough to dispense this advice of what I did.
Big mistake! The vinyl of the tape reacted with whatever inside and became hard, split and proceeded to cut my tubes to ribbons. Happened to both bikes I did this to.
So again, if you did this too, be quick and remove the tape before the same happens to you.
What I now did to try and solve the problem, is to sand the cut ends' edges smooth and round to try and prevent further flats. Fingers crossed...