Comparison of 2 essentially similar techniques for restoring a hole in a pin block of a piano

[maxim_tuner]

The main advantage of Jim's method of shimming is the use of a thin sheet of veneer https://youtu.be/yR_cviIUfZM, which allows for minimal material removal from the pinblock hole. This can be especially useful when the hole is already worn or enlarged. The veneer can be precisely cut to fit the exact size of the hole, allowing for a more accurate repair there.
On the other hand, Max's method of shimming https://youtu.be/SqYdjUbCpak
using corrugated cardboard or paper offers a cost-effective solution that is easy to obtain. It can work well for many pinblock holes, and the material can be built up in layers to achieve the desired thickness. Additionally, the use of cardboard or paper can minimize damage to the surface of the pinblock hole.

Overall, both methods have their advantages and can work well in different situations. The use of cardboard or paper may be more versatile and cost-effective, but the use of veneer may be preferable when a high level of precision is required. It is important to choose the method and materials that are appropriate for the specific piano's repair needed.