Your first water splash images are quite special, but as you get used to the equipment and refine your technique, major improvement come quite quickly.
I am not familiar with the Triggersmart unit, as I use the SplashArt system, but here are a few tips which may help:
Use your flash off-camera, manual, 1/64 power, distance 4 - 6 inches. Freezer bag over the flash for protection. The lower the flash peer, the faster the flash and you need fast flash to freeze the action.
Use an aperture of f16, especially if you are looking to capture collisions.
Have the drop tank around 600 - 750mm higher than the catch tank. The catchtank should be at least 50mm deep to allow for reasonable height tendrils.
Small movements (and I mean very small) of the controls to walk the shot in to what you want. Only move one control at a time until you fully understand what it achieves. Moving more than one just gets very confusing.
Expect to take between 400 - 600 shots to get a reasonable usable selection. That is half a day to a full days shooting.
Try using milk, it is a little more controllable.
Add 5% Glycerine to thicken up water.
If you want collisions, you will need a drop rate of around 10 drops per second.
Hope that helps.