The OD light isn't very bright for sure. I installed a red gear indicator light under the left speaker grill. Used some very sticky putty tape to mount it.
It has worked flawlessly, and you can see it in the sun. I installed a blue volt meter of the same size under the right speaker grill.
But I agree the B could use another gear, or, Spread them out more.
First gear is a creeper gear and I only use it when taking off on hills.
The motor has plenty of power for a better gear ratio set up. 3k rpm at 70 is a bit much for the power it has.
Id like to see it around 2600rpm where your getting into the low end of the power band.