Yeah, What Matt Said.
Fibreglass is not a completely “stable” product and it will deform over time. Plus Sizing is never 100 % accurate or consistent, these parts were are hand laid. And sometimes it seems as if the BVM kit designers went out of their way to make a job difficult. (Wait till you try hinging a Super Bandit.)
Remember, your kit is 20 years old and model jet construction has evolved an awful lot since then. In 1998 The Comp Bandit was the absolute top of the tree, aimed at the very best builders and flyers in the Country (all flyers were builders in 1998).
Today, you can buy a Bandit PnP. No glue required .
Keep at it. You will learn so much from building this model, and the end result will be so much more satisfying..