Pinbock thickness

[David Renaud]

A Knabe grand pinblock originally 1 3/4" thick.
Sits on the shelf, with wood shims(thin), elevating the
block/plate, to the proper level. Block ends are into the rim about 1/2
inch.

The distance from the plate to the bottom of the flange is only 1 1/2
inches.
So what is so stop me from using a 1 1/2" block and shimming
the shelf the extra 1/4". It is screwed/glued down to the shelf away.
If it is important to use a 1 3/4" block, why is it important?

I ask as I have the 1 1/2" block material in stock, not 1 3/4"
I am only considering if this may be an option,
consulting with several experts that know better,
including this list.

                                 Thank You
                                 Dave Renaud
                                 RPT