If you are using a binary variable for the sockread, you shouldn't be using a regular variable for the data. If you stick to just binary variables, you should never get the line too long error. That's the reason for using the binary variable in the first place. Also, with binary variables, I don't think you'll need a second variable if you set it correctly. I'd have to look into it as I really don't use binary variables for anything, so don't have a lot of experience with them. And since the OP doesn't need them, I'll just leave it the way it was.
