High physics does not have boosting in unapproved maps or offline play. To recreate, compare an offline approved map to an online approved map.
This creates issues with map makers wanting to test to see if certain spots are boostable in MP. The only way to test would be to go to low physics where boosting is different.
The solution would be to add high phys boosting to all applications of high phys.
(This is completely unrelated to my petition post, which says we should use low physics. This is ONLY asking for standardization of high physics boosting.)