I am useing 1 layer of easy preg for what is seeming to be a very awkward part to get Wright . As the description says for use of the easy preg is to oven cure for ten hours at 100c ' I have followed this instructions but 5 parts later I am still getting generally the same outcome of the parts. I have been looking on the forum for information of people with the same problems . What keeps popping up is a lot of people are talking about ramping up and down in the curing process. 

You need to keep the pump running for better results.

The slow ramp rate and dwell periods are pretty important if you want a decent finish, the 1st lower temperature dwell period allows the resin to reduce in viscosity so it flows but doesn't cure then the higher temperature does the curing.