fighting a decent spino after the update can be rough. they are now faster, have more stam and more health. but what sarc lacks in all three it gains in manoeuvrability. Because I don't run ambush at hunters thicket, it takes exactly 6.2 full charge bites to kill a spino, and 7.2 reg bites for a spino to kill a sarc, ( of course that's all dependent on where you hit them) so trading is not an option. just got to be patient and wait for an opening. even a spino with zero stam can just sit still and trade with you so it gets tricky although the same doesn't go for your average spino player who chases you around spamming donkey bite, they can be easily won.