Originally Posted by Reino
When the banjo bolt is not in the correct position it does not matter what method you use to bleed the brakes, you can not flush the air bubble out. That is why the mod works, the nissan MS used to replace the standard brembo MS has more than one hole.
This has been documented on the interweb and this fix is apparently the solution to the problem, later today I am going to the mx track to test my brakes and I will report back on the findings.
I have used the syringe method to bleed dirt bike brakes maybe 500 times, and up to now never had a single problem, so wont be risking a broken banjo bolt for no reason.