Hi
300 is not much if he has been doing them since 2006. If he is a newer surgeon doing them on going every week, then he is becoming experienced. In my opinion, experience means they have done 1000, 2000 or 3000 and do them on a weekly basis.
3 revisions out of 300 sounds like he is still in the learning curve. Are those recent problems or from when he first started? The BHR retention rate world wide is 94% at 10 years. The top surgeons personal retention rates are in the 98 to 99% range.
He might be excellent, but there are a lot of people that had problems that said - if only I had used the very experienced surgeons since they have very few problems.
If this is the only surgeon available and you feel confident with him, then you will use him. Hopefully his revisions are behind him at this point. Sometimes people can't travel, but it is often worth traveling to use the very best when possible.
Good Luck.
Pat