Back to the Lemon Drop.
I am no expert here but I did stay at a Holiday Inn Express last night.

I think the 3-2-1 mixture is good.
3 parts fresh lemon juice
2 parts good vodka
1 part an orange liquor (again, homemade triple sec)
I added about slightly less than 1/2 of 1 part of simple syrup to take the edge off as well as 4 drops of Fee Brothers Lemon Bitters.

I thought it was good, again not my cocktail preference. MJ who loves tart like the drink and agreed that the bit of simple syrup took the edge off with out taking too much of the tart flavor from the drink.

MJ loves research, such a willing taster.

Cheers,
Todd