>>7612122>I can trim nubs, no issue - but how do I tighten joints? Do you use some sort of substance as filler?Yes, use clear acrylic paint or jam a piece of tissue paper in the ball-joint if it's loose. MFT tends to be just-nice to overly-tight though, you can loosen them with sandpaper or a file. For undersized 3mm weapon holes, I put a 3mm dill bit though them and spin it gently.
>what would be a good insect-like antagonist for my pals? Diaclone's own villain faction, the Waruders used insectoid mechs that got reused as the Insecticons in 80s Transformers. Modern versions of those insecticons may work for you.
For Diaclone Reboot, TakaTomy gave them these boney, organic-looking modular mechs. You can science them into insects yourself. MFT's KOs of these Waruder suits are dropping next or following month.