VZ SC imo is great for melons (all) and berries (all) and at 3 to 4 %, no sweetener needed…. but i'd prefer to use TFA just because its got some natural flavorings in there… haven't tried the straw or other TFA berries yet.
Try the Blackberry @ 5-7% It's very sweet without adding anything else. If you like lighter flavors, stay under 5%.