Hey @miniature-zebra-80381 In this case I probably would try it out first by setting up basic feature with an experiment rule, then in the feaure use the test feature rules to test your changes. In the results you can then see if you you are now re-bucketed.
I would assume that as long as your value in the the attribute doesn’t change a visitor will keep seeing the variation it was assigned to. Growthbook checks the values stored in the hash and that is independent from what attribute type was used.