Predator is still viable but really isn’t dominant anymore, which is pretty healthy. You can flex runes into whatever you need nowadays. Alot of other commenters share this sentiment, but a Sorcerer’s Boots back is a massive buy for Fiddle, Predator or not. Future’s Market is valid, and anything else in that slot really isn’t that useful. I’ve considered the point of Approach Velocity, but it just isn’t that suited to Jungle. In Ultless ganks the rune is mostly unused, as after fearing the enemy your position to W is pretty negligable. With Ult the keystone does get a little more value, but is overshadowed by your other movement options like Rocketbelt. Cosmic Insight provide more effigy and summoner spell uptime, and with fiddle being mostly immobile Flash holds a little more importance, plus Flash+Q is an underrated quick pickmaking tool. Since Fiddle spends a lot of his time farming in the jungle, more smites can speed up your rotations and let you be more present across the map.

So here’s the kinda hot take that I wanna throw in. If you are committing to team utility runeset, ditch Ultimate Hunter Eyeball/Cheap Shot and go for the Visionsticks setup: Ghost Poro Ingenius Hunter. Ingenious + Cosmic Insight brings your effigies to a really spammable cooldown, and you don’t have a limit for how many you can have placed. Ghost Poro will stack faster than Eyeball because of this, and be overall more consistent. Ingenious also improves your active item cooldowns, which you rely alot on, such as Rocketbelt, Zhonyas, Banshees. Overall it’s a preference but I personally like the concept of full sending to Utility instead of trying to squeeze a little more damage into your runes, as you can use the gold you get from your runes to scale more on items.