my experience in germating KVS is awsome, is 2 for 2 lool.
i going to tell you how a germinate the KVS and the others, 12h on a glass of water with PH-8 on a dark place, after that i put directly on the soil previously water ph-6. at this time no radicle is out. cover the por withe a plastic to retain the moisture, After 36h they came out. it was very fast, normaly is 2 or 3 days.
How is your temperatures?