For our original testing, we assembled a panel of seven tasters. We made at least two rounds of Bisquick waffles and one round of yeast-raised waffles in each model. Rather than judge the time it took for the machines to heat up and cook, we focused on how good a waffle each maker produced. At first we followed the indicators to determine when the waffles were done, and if a machine had no indicator, we waited for it to stop steaming, as Matt Maichel suggested. We allowed for flexibility in cooking time, so if one needed more time, we would shut the lid and let it cook a little longer.
This arrangement is quite clever but contains a small design flaw -- the electrical plug is on the hinge side of the trunion mounting. It rotates 180 degrees and in doing so creates a flex in the cord; eventually, the cord will show mechanical failure at the flex-point as illustrated below. This "flaw" can be used in authenticating the cord that goes with the "Twin-O-Matic". However, safe operation requires an intact and properly insulated cord.
Optional: If you want your waffles a little crispy you can add some extra oil to this batter too. Additionally, you can experiment with adding different flavoring extracts or spices to the mix to make them taste the way you like. Sometimes we add pumpkin spice mix for a seasonal flavor, other times we may add Pecans or Lily’s Dark Chocolate Chips for some variety too.
That said, quite a few users say that this waffle maker isn't as sturdily built as previous versions of the same model, and that if you don't get the top heating plate aligned just right, it can fall off -- an injury hazard if the plate is hot. The top of the G48TD also gets very hot. Some use pliers to bend the metal clips that hold the heating plates in place, which helps them line up better -- or you can just use an oven mitt to protect your hands.