I great idea but it doesn't solve a shakey hand.
This brush on latex base coat works well to shield the edge of your nails when using polish.  The only issue I have had was in getting it brushed on the correct areas and thickness.  The reason for this product is so that if you brush or sponge polish over the edge of your nail onto your finger it will easily peel off with the latex as soon as you are done polishing.  However, if you can't brush straight with polish...how can you brush straight with this which is far thicker.  So far it has worked well you just need to take care to get it as close to the nail as possible without actually getting any on the nail which will leave an unpainted portion when peeled off.
Rating: 3 stars