Convert Verizon S5 to full T-mobile S5

I have a Galaxy S5 that was on the Verizon network. I now have it on the T-Mobile network with a T-Mobile sim but I still have all the Verizon crud.

I have it rooted and the bootloader unlocked. Can I just flash any T-Mobile stock/rooted rom and have it be a full T-Mobile phone?

I've rooted several Sprint & T-Mobile phone but have never done a carrier change. Currently it is on Verizon PB1 Lollipop.

Thanks to all.
Goob

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