Please use these ideas as reference.
To beat "Under", you should focus on eliminating Ds one by one. At first, eliminates handler's D, then challenges screener's D.
In this article, I mainly explain about eliminating handler's D. About challenging screener's D, please refer below article.
coming soon...
Eliminating Ds One By One ("2on1 + 2on1" Concept)
Fade
When handler's D avoids screen by "Under", you will get a chance of pull up jumper behind screener.
If handler's D pulled ahead of screener to prevent your shot, then you can choose drive for opposite direction.
Re-Screen
Even if handler's D avoids screen by "Under", screener can recover it by setting screen again for the opposite direction.
It would be difficult for him to avoid it again.
Push Screen
“Push Screen” means to dive to a rim involving handler’s D.
By “Push Screen”, handler’s D is forced to make a big detour to avoid it.
So, it gives large separation to handler.
Starting screener-roll a little earlier than usual, it is easier to accomplish it.
But, you should be careful of illegal screen.
Flat Screen
By setting screen behind handler's D on a flat angle, if handler's D avoids screen by "Under", foot-race situation would occur.
On the other hand, it has a weakness that he can easily avoids it by "Fight Over".
So, you should use "Flat Screen" when you are confident that handler's D must avoid screen by "Under" or you have enough skills to keep screen effective even against "Fight Over".
Logo PnR
If performing PnR at "Logo Area", even non-shooter handler can choose pull-up jumper against "Under".
I would be pleased if these were helpful for you !
As soon as I could learn new options, I will update this page.