Did the "squirt" fan out about 5mm when it just came out of the tip of the injector, then go into a solid stream? If so, they are meant to do that. When I got my injectors cleaned (RB30), they did the same thing. The guy cleaning said that is normal. When they are operating in an engine they are only on for a short amount of time, so the fuel doesn't get a chance to turn into a stream. Also, the air stream going past the injectors doesn't allow the fuel to get past the fan shaped spray.