The LEGO switch geometry is optimized for one purpose: building stations with parallel tracks. The "backwards" bend that makes this easy is a PITA when building almost anything else.
After seeing this inspiring presentation on track modification I decided to modify my RC switches. The procedure seen in the presentation is unnecessarily complicated as it deals with conductive 9V tracks.
I took an easier path to make the so called "stubby switch": I used a thin
saw to cut off the bend of the switch and also cut a piece of curved
track in half, as seen in the picture below:
I recommend to snap an old damaged brick to the sleeper as a guide for the saw.
Using a spare 2x4 plate of the appropriate colour, I can join the switch with
the cut-off part (for building parallel tracks). When I join the switch with
one of the halves of the curved track, I get a switch that corresponds to two
curves:
Now I can use the the switch to tangentially connect to a circle
... and build more complicated track layouts in less space:
Happy cutting!