You could run a length of outer that finishes under the tape, then use a cable-end to clamp a biro spring to the cable, keeping the lever under tension?
i.e. run a cable through the outer that is ~2cm longer than the outer when the lever is in the desired position, then slide a biro spring over the cable and use a cable end to secure it to said cable?
You could run a length of outer that finishes under the tape, then use a cable-end to clamp a biro spring to the cable, keeping the lever under tension?
i.e. run a cable through the outer that is ~2cm longer than the outer when the lever is in the desired position, then slide a biro spring over the cable and use a cable end to secure it to said cable?