[okie01]

"This information will increase understanding of leeside aeroheating phenomena and will be used to design a less conservative thermal protection system."

I read this as suggesting that they weren't experiencing recurrent overheating on the upper left wing and fuselage. Instead, they believed that they were "over-insulated" and could potentially implement a "less conservative thermal protection system". In other words, save a couple of pounds...

[Cold Heat]

You may be right. I thought the opposite of less conservative would be more liberal> LOL!