I also did this. I used a 3cc syringe with a 21 gauge needle. I am a nurse, so, I have access to needles (not the blunt ones). It was great because the needle went right through the weave. I used long needles and was able to get the point par in the bubble and then walked it out as the bubble filled with resin. It worked great! I would recommend using a small syringe though. The reason being is pressure. The larger the syringe (5cc or 10cc) the higher the pressure you will acieve when forcing the resin through the syringe. I found that too much pressure would force resin out through the weave. Good luck! It really made my boat look better