I grew up in the WWCoG and then became a JW 16 years ago. Most of my family are still WWCoG, however they are split because the WWCoG group had a huge shakeup in doctrine. The original WWCoG leaders attended a convention of mainstream christian denominations and converted to Christianity back in the 1990's. The hard-core members left and resurfaced in a lot of different groups with the same blind faith in Mr. '1975 in Prophecy False Prophet' who also claimed to be the Faithful Discreet Slave, Herbert.W. Armstrong who founded the cult back in the early 1930's.
My mom, sister and most of my brothers (although one and his wife became christians, thank God) are hard-core and went to several different splinter groups. They won't eat pork, shellfish, fish w/out scales or any animal that does not chew its cud and does not have a cleft hoof. Rabbit, squirrel, bear, froglegs, etc. are a no-no. They follow a lot of the old Jewish customs -- Feast of Tabernacles, Days of unleavened Bread, Pentecost, Day of Atonement, etc.
The nice thing about it (very different from JW families) is that they get along extremely well and other than observing different holy days and a couple of dietary exceptions their familial relationship is as solid as can be. The whole mix of them (29 in all) rented a 9 BR cabin in PigeonForge, TN this past week and had no problems with the dietary thing. They ate beef and stuff like that.
I was the only dummy who went to the demon JW cult.