Don,
You're using WS risers and inclines on your layout. What are you using for roadbed? A small piece of cork right next to the track works well for holding the CI manual throws - even on foam. Turn the piece that you will mount the manul throw on upside down so that the bevels are parallel to (match) one another. Make sure you use a good adhesive for gluing the cork to the foam.
Tom
https://tstage9.wixsite.com/nyc-modeling
Time...It marches on...without ever turning around to see if anyone is even keeping in step.
Thanks all for the quick reply.
Excellent advise everyone.
I will try using the cork or wood base for now.
I've used this method three times on project layouts for the Gateway Division (NMRA).
I cut .080 styrene as a base for the Caboose Ind. ground throw. Depending on the turnouts you use, you'll may need to trim the ties straddling the throw bar.
I position the ground throw on the plastic and drill through for self tapping screws. Most LHS that deal with RC model airplanes have packets of small Allen head wood screws. Carefully mount the ground throws to the base, the scews will extend through the styrene base.
I place the assembly at the turnout with the lever vertical, mid position, and engage it with the throw bar. With the points at mid throw, I carefully mark the position of the ground throw.
I disassemble and glue the plastic pad to the base with yellow carpenter's glue and allow to set for 24 hours. I pool the glue around the base forming a fillet. Amazingly, it's a very strong mounting method.
Once the glue has completely set, paint the base, add ballast and ground cover and remount the ground throw, being careful to use the same thread cut during the initial assembly.
I like this method because it alows easy replacement of the ground throw if it should become damaged.
One last note, use the sprung ground throws.