i dont know much bout tuning but thought id try and help ya out all i could.
You could invest in a drum tuner. Theres plenty around on the internet. They automatically tune them to a certain taughtness.
The other thing i would suggest is talking it to your local drum shop, where im sure they will be able to help ya out with any tuning issues and some may have a tuning service where they will tune them for ya for a small fee.
Hope this helps
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