[Mr.ac]

Wow, some people really love their pinch welds being in pristine condition.
It's a jack point. It will be fine. It's engineered to be jacked up and supported by that points.
There is zero need for a hockey puck and an over priced jack stand. Actually zero need for a hockey puck. Any over priced jack stand would have the groove built in.
For fucks sake any harbor fright jack stand has the grooves already.

But...if your that kind of people that worries about pinch welds I really recommend having some one else work on your car. You silly cats.