The base is more important than you might think.
If you get a good one and mount it correctly, it can be used to help stiffen the action.
An aluminium one piece base is not as stiff as a good steel one piece base, and if you use JB weld to mount the rail, you'll hold zero better over time.
A common upgrade is to use larger screws to hold the base because the originals are a little on the small side.
Keep in mind that the screw direction is not consistent with the direction of axis flex and offer poor mechanical leverage to the direction of action deflection when a round is fired.
Think about the action bending like a banana when the round is fired.