Issue description:

The vanilla comparator reads a redstone power value higher than 15 when connected to a bin holding 69 or more items in it. This causes a major problem when trying to use a comparator to get the bin mostly full and turn off some production process. It will instead fill it to less than a stack because by then the level is already close to 15.
Full bin Redstone Powers are below.
Basic: 897
Advanced: 1,793
Elite: 7,169
Ultimate: 57,345
Creative: 469,726,049

Steps to reproduce:

1.place any tier Mekanism bin and fill it with 69 or more items.
2.place a comparator to read one of the sides of the bin.
3.look at the output face of the comparator with the player reticule
4.The One Probe will tell you the Redstone Power level the comparator is outputting.

Things to note:
1.The comparator still works like it should comparing and subtracting, so a basic bin with 69 items in it will output a RP of 16 but in substract mode with RP15 side input it will output RP1. Or the pictures below showing the full basic bin with the comparator in subtract mode. 897-15=882

2.Redstone dust immediately truncates the RP down to a max of 15.
3.A Block between the comparator and the bin does not truncate the signal, it reads the same value.
4.comparators are able to chain the value together, and even use that as a side input.

Version (make sure you are on the latest version before reporting):

Forge: 32.0.106
Mekanism,Additions,Generators,Tools-1.16.1-10.0.8.431
TheOneProbe-1.16-3.0.1-beta