secp256k1::uint256 CLKeySearchDevice::getNextKey()
{
    uint64_t totalPoints = (uint64_t)_points * _threads * _blocks;

    return _start + secp256k1::uint256(totalPoints) * _iterations * _stride;
}

Can I add some creative counting to the function? For example, ×2 private key, ×3 private key, or using fibonacci sequence.