Do you make yeast starters? If so, make a starter with that and you'll be good. It is probably enough otherwise too depending on the beer style/size. For your second question, I like to experiment with yeasts and see how things turn out, that's the fun about making beer, give it a shot with other styles and see what comes out of it. If it's good, great, if not chalk it up to learning. You may want to adjust your hop usage to fit the style of yeast too.
"The mouth of a perfectly happy man is filled with beer."
- Egyptian Proverb
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