In article .com
, nafuk writes
I've taken a pane out which had the tough double sided tape - just
prised it slowly. Afterwards I was told that wobbers use a cheese wire
to cut it out in two shakes.

Yup, hobby knife run around on the inside would be easy too as it is
double sided foam tape to take up tolerances in the frame. Didn't know
about the cheese wire trick though, reckon I will back fill my gaps with
some decent glazing friendly silicone before fitting the external glazing
beads, that should bake it a bit harder.
--
fred