Newer YYJ models come with the YYJ silicone o-ring. The ID/OD are the same as a stock o-ring, just the thickness and material differ. At one point in time people used to use a razor blade to cut the stock o-ring flush with the inner surface for a little less response.
BTW - you can play non-responsive w/stock o-rings as well. It’s more due to a clean or very lightly lubed bearing than anything else.