Furthest back, exhaust side collets. Took a few goes to get the magnet, long screwdriver, tool and my finger in the right spot for that bad boy haha. Another pointer for others. Do the ones at the back of the cylinder before the front, as you feed the collets in where the front springs would be. Also I used a jewelers magnet. Nice and small tip like 3mm, but easily strong enough to pick up collets. New Atomic springs back in, engine timed back up. Seals and such will be here Monday. Hopefully running soon after