I have been laying up both CF and FG parts and trying many variations in my process in an attempt to produce a flawless part. I have been using Fibre Glast Series 2000 and Series 4500 resins and have similar problems with both. Regardless of how long I let the mold sit under clamped off vacuum and test the seal (I usually do 20 to 30 minutes) I still find pinhole leaks as the resin advances across the part as indicated by branching paths of bubbles.

How much of a problem do you think various trimmed pieces of infusion mesh, jacketed bleeder cloth, and sharp corners on a part are (90 degree corners). What can I do to improve my layup process?