__Lots of frustration trying to reconcile this. It doesn't make much sense.__

Somebody can stick a 125gram propellant H motor in a minimum diameter rocket and go over a mile high. OVER 5280 feet high but you can't launch a bigger I or J motor heavier rocket to 3,000 or 4,000!?!?!?

Somebody can stick a 125gram propellant H motor in a minimum diameter rocket and go over a mile high. OVER 5280 feet high but you can't launch a bigger I or J motor heavier rocket to 3,000 or 4,000!?!?!?

Why isn't it determined by altitude?

Why is it determined by propellant weight?

I know for a fact a well engineered min diameter rocket can go like 7,000 feet with a motor that doesn't require a waiver. A long burn H motor with 125grams of propellant will get you there.

But yet I can't launch my 20 lb J motor slow and low starship to 2500ft.

Why did they decide to go with propellant weight of all things?