but here Rav Abadi talit katan shiur it says that the Rav doesnt count the hole for the head within the shiur, so size 24" doesnt fit (for wool model i’ve seen) because if you measure from the top of the slice (for T neck) or hole to the bottom of the tallit it’s less than 24" so you need size 25.5" to be ok with the Rav shita