CrammingPressurePlate is a mod for Minecraft Forge 1.12.2 and beyond that adds a new type of weighted pressure plate: the ultra* weighted pressure plate. It's basically a normal weighted pressure plate with a maximum weight of the current maxEntityCramming gamerule.
Configuration
Spread out power increase
The normal weighted pressure plate behavior.
The outgoing power level gradually increases while nearing the maxEntityCramming limit. It follows the formula:
PowerLevel = mobsOnPressurePlate / maxEntityCramming * 15
Immediate power increase (default)
The pressure plate only outputs a redstone signal of 15 when there are a maxEntityCramming amount of entities on the pressure plate.
Recipe

* - The name 'ultra' suggest that it's 'heavier' than the vanilla 'heavy-weighted pressure plate'. However, on the standard settings this isn't the case as maxEntityCramming is 24 by default and the 'weight' of a heavy-weighted pressure plate is 150.