Re-lock bootloader after root?

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Hi folks,I've managed to stumble my way through using pixel flasher to update my P7Pro to the latest fw with root. Only need root so I can record calls, should I lock the bootloader now I'm done?Also how do I update in future please without having to wipe, use pixel flasher and patch as I've just done?I like to think I'm quite tech savvy but the guides for the P7Pro have gone over my head :/