On the picture you can see a Vray 1.47.03 shader into Max 8.0 + 1.5 Rc2…
When you create a shader into 1.5 directly the Min rate and Max rate (refl and refr) are set to -1…
I want to know if there is a script to convert old version param -3/0 to -1/-1…
A script that can work on evrey shader in the scene (even in Multi/Sub)…
I’m not capable of making script…
Please help… 
Best regards…