Perf plate hole sizing/spacing use

[bt1]

Howdy,

wondering if anyone is using 1.75mm or even 2.00mm hole sizing on a perf plate? Looking to test and would appreciate comment from anyone using em....

Also any one under the traditional 5mm x 5mm drill pattern for perf plate holes?

Want to see how close I can get a plate to a shallower bath level dump point and it's impacts on vapour speed. heat inputs.... hope to keep it close to the spray phase under the entrainment flood level rather than all balanced realistically.

bt1