As mentioned..   3x not a charm here.

I have this isseu every time.
Clearcoating without gelcoat would be an option. But allso that isnt easy with small holes like this.

Now i used gelcoat. Hoping it would help.

Gel had cured at 25 degrees for 5 hours was dry to touch.

I used 3m high tack clear spray adheasive to hold the fibers in place. (AS LITTLE AS POSSIBLE)


on the vacuum catch pot the dail says my vacuum is 100%
I leace the pump running over night.  In the morning when the resin is hardned the vacuum line form the ez composite starter kit to the pot is flat from the vac. 

(I dont have an official cacuum pump.  I use a 35l/m fridge pump. Whitch seems to work fine.   I can add an extra pump if i need more cfm...)
If my vac is to strong.. i can make a bleedvalve to reduce vacuum.   

But idialy i would love to have a perfect finish.

I use easy lease release agent..  denoulding is a breeze..

Yeh make no mistake, that is a tricky part to infuse without bridging. Pre-preg would be a lot easier, though infusion won't be impossible. You will just need to really concentrate on getting rid of any bridging before you pull the trigger on the infusion. Spend a couple of hours just working the bagging stack into those recesses under partial vacuum. I would work from the middle out, pull full vacuum, let the vacuum off again, work your way from one side to the other, pull full vacuum, let it off again, work your way from the opposite side back again, pull full vacuum, etc. You will learn what pressing on a section of bridged material feels like, it is somewhat spongey compared to the rock solid feeling of pressing against the mould surface. 

If that doesn't work, you may need to start putting relief cuts in on those recesses. I feel the actual reinforcement is thin enough that you should be able to get it to work. Possibly rotating the backing layers to +/-45° will help. Same with the peel ply, lay that up at 45° and don't be afraid to put relief cuts in or let it overlap itself. Your infusion mesh will probably be the biggest issue, so I would either use a knitted flow mesh (total PITA to remove afterwards) or place relief cuts so that it can move around easier.

Your infusion speed may also be an issue with regards to trapping air in those areas of bridging, 10mm feed line is MASSIVE for a layup this size. To put in perspective, I use 6mm feed line for any infusion up to 3.5sqm. So when you're getting up to the size of a full size boat hull, thats when you need ~1/2" feed line and connectors or multiple connectors.