12×8 wheels to 12×7, issues?

I am looking at some sti beadlocks that are 12×7 4/3 offset all the way around. My current paddles are skat trak extremes 26x10x12 on the rear and 26 x12x12 doonz up front all on 12×8 dwt rims. Am I going to be ok going to a narrower rim? Will the paddles round too much on the new tim, I like the paddles, they run great, just don’t like the rims. The setup came with the bike.

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