One doesn’t have to remove the plastic and add a blob of solder. Frog and wing rails are already electrically continuous. (Trust me-I have a slew of them. If in doubt, check it yourself with a meter,)
Soldering to the wing rail on WS switch frogs works fine. All of mine are like this. Once painted and ballasted the feeder is not noticable at all.
Alan
Freelancing the LK&O Railroad
That's my plan then!
Kerry