Ok, I would not do the dripping as a newbie. There is a technique to it. If you drip too much, then you flood the atty and get it all over the battery. You need a manual battery for it as well.
You don't want to use a carto to test Flavors. First, because it mutes the Flavors. Second, because if you don't like the flavor, you've wasted a carto. Personally, I don't want to spend $1.85 on a carto to test a juice.
Use the Phoenix bottom coil 2.4-2.6ohms. I just posted a video on YouTube demonstrating the Phoenix on the volt. Here is the link.
Smokeless Image Volt and Phoenix from Got Vapes Review - YouTube
The bottom coil is easier to clean out than the top coil if you don't like the juice because of the shorter wicks. Also, it is the most similar to the taste you would get with the si carto. The top coil is similar to the x2 clearos. Again , get the 2.4-2.6. Because they are 1.5ml, the vapor is too cool with the 2.6-2.8.
Gotvapes is having a fathers day sale. "daddyrules" will get you 5% off and if you subscribe to their newsletter, you get another 5%. By the way, once you try the Phoenix, you'll never want to use a carto again