Well, the more times you do it, the less major it becomes, right? High-miles engine spun a couple of rod bearings. Most annoying part is that the bearings went about 8 months after I did the head gaskets. Biggest challenge was just finding a good crank - I'm jammin' econo, since it's my daughters' Forester and I'm not real crazy about those things to start with. Ended up being kinda funny, though. Buddy doing some acreage yard cleaning popped up on the local online buy+sell (kijiji), hoping to get someone to haul off a pile of motors of unknown condition his kid had left lying around - two EJ25s and an EJ20. So I gave him a few bucks and took 'em home like scratch'n'win tickets - how many do I have to pull apart to find a good crank? Two, it turns out, then I gave the EJ20 to the friend I sling these things with.