Got my new 7 saum build finished tikka action with a proof sendero. With my med rings on my vx5 3-18x44 the objective is touching the factory barrel was pencil barrel t3lite. I'd like to install a 20 moa rail and wondering if I should go with low or med with the rail. I'd prefer the lower the better with the rail. If anyone's ran into this I'd appreciate any info.