KRALIK & RUCKL, KRALIK & KRALIK, OR RUCKL & RUCKL?

This decor in the green spatter over a red interior glass layer and clear glass vase has been a bit of an anomaly in the Ruckl arena of attributions. It had been identified as such years ago, I don't know by who or where or when. It was shown as a Ruckl vase in the Tango Sklo Exhibits.

What the issue is, contrary to most Ruckl glass decors, it does not seems to have been used on any other items. In fact Kralik has a few items with these decors, of the four decor examples of these large 11 inches high vases, especially the red background and the light blue spatter background are found as decors on what are Kralik shapes.

I don't know what has been discussed in the past about this, I do know that various Czech glass collectors are not comfortable with the double attributions, they prefer same decors to be attributed to the same producer.

Where do I stand? I am more likely to declare that the 4 decors on the tall vases are also Kralik, there is one more decor that has only been seen once, a striated diagonal striped decor on a red background. All of these vases are here on CW, or were, probably under Ruckl or Kralik glass items.

Here is a link to all four vases on an older post:
https://www.collectorsweekly.com/stories/122745-ruckl-quartet