Apologies... Shield issue is NOT fixed.
But hey, I've discovered something halfway useful from all of this:
1. Not declaring a specific death_fuse is not a good idea. Dunno why fighters don't have severe problems, but with the larger ships, this is a serious problem. I'm fixing every fighter in the game to use death_comm until I have a better idea. I have a feeling that this is because a Fuse can call for a Damage_Group to behave in various ways. The Li_Cruiser, which has a custom SUR that I'll get around to making a little bit more perfect before releasing the next version of the Toolkit ... doesn't have any Damage_Groups except for Root. Silly me, I didn't pay attention to this, and was wondering why the ship cause CTD upon death over and over again. Problem solved.
2. Something is darn well calling out ship collision mesh names, whether or not the INIs are. Having done an exhaustive search, I am pretty darn certain that these names are in the SURs. Hence Anton's getting rid of the Damage Groups via FLModel Tool ... also gets rid of these bugaroos. So... if I want to eliminate Simple and Collision_Group entries (which I do, because these are a big part of the problems with Shields and Big Things)... I have to make all SURs behave in standard ways. Now that I have a better idea what I'm dealing with, I'm pretty sure I can deal with this issue.
Basically... my end goal here is to eliminate Simples. While Simples are cool in that they allow various sub-groups of a model to be progressively destroyed, they're very un-cool in that they make a ship a collection of hitboxes, which is one of the reasons why Missiles and other things with area effects have been so problematic. Gonna fix that stuff for good now. Next version of Toolkit will have FL capships that behave themselves, react to missiles correctly, and generally act like they should, I hope. I'll fake the break-off parts with Shatter, I hope... at least I *think* that will work. If not, I'll have to seek another solution so that people will still get to see bitz splattering about when ships die.