Hi George: I've been using hand thrown N Scale Peco Code 80 Electrofrogs for many years. And I went for years looking for a simple way to power the turnout (slide switches, blue points, etc).
I had the same issue and attacked it it two ways, and now, finally, I have a fantastic running layout - SW1500 at 5 MPH over the turnouts. Hope this helps.
Initially, I installed jumpers along the outside of the point rails, across the pivot joint. This improved the electrical connection made by the points, but still not 100% reliable, because it didn't address the frog. And it's tedious to do, but not absurdly so (unless you have 500 turnouts).
Last year I discovered a fantastic electronic fix, that is easy to install, but not cheap. Check out the Frog Juicer at Tam Valley Depot. One wire to the frog, insulate both frog rails and you are done on the turnout. The under the layout part of the Juicer is then connected to the bus wires and that's it. Simple, elegant solution.
My understanding is that when the turnout is thrown, the frog juicer senses the "polarity?" change and eliminates the conflict before the DCC system detects a short.
This isn't cheap ($69 for a six turnout juicer), but the expense was worth it for me (55 turnouts), because the layout runs flawlessly now.
Not all my turnouts have the jumpers, but all work perfect with the Frog Juicer, so the jumpers may not be needed.
Hope this helps.
Insulfrogs have different problems, as discussed above.