As an outsider, and not knowing anyone from either group-
Being new to Texas...but not Camaro5...I met and got to know many members while living in Canada...
LSC seems to be pushy and controlling and I personally don't get a good vibe.
Many people like myself are car people, but not car club people because they tend to be too political, etc. and this informal group of C5 people get together without the drama. I see a fit for both types of groups, but the "Club" needs to back off and quite being so negative to a group that just wants to informally meet up...
Just my opinion having followed this section since moving down here a few months back.
My suggestion...schedule your track times together, but keep all else seperate (and LSC just let the other group be).