AND......

If you do send them out to get cleaned/balanced, do NOT take your time putting them back in. When they get back to you, get them installed and start the car up.

Apparently the stuff they use to clean the injectors gums up a bit if it sits...leading to the injector sticking open and leaking raw fuel into the cylinder.

Had a friend bend a rod in his Miata after it hydrolocked; the above story is his.

Jarrod