I also saw a pic of RF post where he changed the needle to the stock one. Wondering if he just cut and pasted it to the Sunpro needle, painted the SP needle or if he changed the whole thing over.
Its not as simple as it seems.
The needle stop is removed.
The coiled wire of the volt gauge is lacquer coated to insulate.
If a needle eventually breaks the lacquer, it screws up the gauge.
Sure it will work for a while but so did the amp gauge.