to be fair ur post is misleading. the share count isnt the number u should look at. u can if the diff of each share is the same between both pools but some have a much higher diff so u cant compare one to the other.
either way i wouldnt use this firmware. folks should have known the same firmware used on s9's shouldnt be used with the t9 versions. i dont really consider this part their fault even if they said it might work with the t9 model. its well known that the models are completely different and have different power requirements and firmware configs. it sucks that it happened but take this as a chance to learn and be sure to read up on the machines ur plannin on moddin via software and hardware.
if u want to force the old firmware back onto the machine use the antminer manager app that bitmain has on their site. it seems to get around the wrong firmware error when flashing custom firmware images. just download the app and the official firmware for ur model miner and connect to it using the app. u have to import the firmware u downloaded to the apps repo but u can figure that stuff out. i have used this to force flash miners that wouldnt accept the official update so i know it works but i havent used this threads custom firmware but it should have the same result.
That won't fix a hashboard pic programmed for a different miner from a malicious firmware update aka this firmware here.