In re-reading you previous post I feel I should note a few things.
She seems to get a little wilty in the sun, though she is watered and sprayed, but if I give her a little of the vitamins to the trunk and to the leaves, it sparks her up.
Japanese Maples, particularly red varieties, should be shielded from strong sun early in the season. In nature these grow in woodland conditions, meaning that they live in the shade of other taller trees. Strong sun and wind can cause leaf burn.
Should I bring in the Maple since she is the only outside tree, or depending on the weather and the temperature, start leaving her out at night. it still dips to the 30"s to 40"s, sometimes 50"s depending.
Unless temperatures take a rather extreme change you should have your Maple outside now. All of my temperate trees (and even the Ficus) are outside now. Only worry if you are going to have frost, I hope that is done for the year.
The vitamins daily sparks her up. She seems to get a little wilty in the sun, though she is watered and sprayed, but if I give her a little of the vitamins to the trunk and to the leaves, it sparks her up. it is a root stimulator as well, so maybe it still needs that a little.
I'm not entirely sure I understand what you are doing with the "vitamins" I have never heard of feeding through the trunk. I have heard of foliar feeding but I usually don't practice this. The roots of your tree have evolved as the primary avenue of its acquiring what it needs.
Get your tree in dappled shade, if there is any yet, or otherwise shade it more. Maintain even moisture and feed periodically. I fertilize about every 10 to 14 days. Since you have included timed release fertilizer in your mix you could stretch it a bit more.
I recently acquired the volume "Bonsai with Japanese Maples" by Peter Adams. It is excellent and Amazon has it reduced from $35.00 to $23.00