Well I know I am going to take crap for this but, there is no such thing as a Sony vtc5. Sony contracted out to some Co to make bats that they then modded those bats to BS and make the so called VTC5. Let me guess its green shrink wrapping with writing on it that may or may not be readable. Yeah my grandmother can print out that shrink wrapping and put it on and she's dead!!!!!
Now that doesn't mean your bat is going to explode on you but .8+ohm should be fine for you but 1 should be better. Its not hot and the flavor seems to be better. Since you're not sure about what you like I think you are better off at about 1 and working from there. Get some organic cotton from CVS or walgreens and all should be good. Make sure you have air under your coils (read no cotton under them) and the cotton is fluffy. Fluff up the cotton and twist it and slide it through the coil curving the cotton like micky mouse ears down to the base. The reason you do that is because the liquid flows better then just jamming it down (think kinked hose). then drip your liquid. Soke it nice, hit it then soke it a lil more. It will get darker the more you use it. If you ever get a burnt flav add more juice. The only thing you may have problems with is getting to know what dry looks like. I had this problem. It looks wet but it really isn't.