Tomato - from fruit

Was trying to see if i can get the seeds from an overripe tomato to sprout. So i cut the tomato fruit into four and placed them on the soil, seed sides down. It worked for me but was slower than planting from seeds. After few weeks the sprouts grew about 2" long. So that worked but now i'm going to find myself heirloom tomato seeds/fruit. I'll keep this one as well for side-by-side comparison..

Seedlings...