Tippy,
You're husband is mostly correct.
Actually loop 1500 is a Tent/Partial hookup site but loops 1600-1900 are not Premiums but classified as "Full" campsites which are the same as Preferred campsites but Preferred sites are in a more requested location down by Trails End, the beach, and the boat transportation.
The 4 types of sites are Tent, Full, Preferred, and Premium. The first three have a sand pad and a concrete driveway 12' wide. Tent sites don't have a sewer hookup whereas the other two do. Premiums have all hookups and are 18' wide paved with no sand pad.
The Full sites 1600-1900 are pretty well shaded with tall trees providing cover. The Preferred loops 100-300 are a mix. I would say 100 is pretty open but some trees whereas 200-300 are shaded. In the Premiums, 1400 has about half the sites unshaded and 600 has most unshaded. The rest all have cover.
Bama Ed