okay I think the bleeders are 10mm, which is good because I have a 10mm deepwell for a 3/8 drive, so I think I'll use socket method, I'll attempt this in the evening tomorrow, I'll apply PB blaster every few hours to hopefully loosen the corrosion up, now when I apply the 3/8 breaker bar on the socket should I do a steady turn or should I hit the breaker bar with a hammer to try and "shock" it