Earlier this year, V4L released its new line of batts, the Diamond and Stealth series. When I first joined, manuals were all I used due to the fear of killing an auto with juice. After my first Diamond arrived, those fears quickly passed due to the performance of the new autos. Months went by, and after a long wait, the manual versions of the Diamond and Stealth batts are finally here. After a few weeks of putting them through the rigors of testing, I can say without any reservation these are the best batts V4L have ever released.