slingToad GTS info
 

Ok here is what I know. You can see the size of the 2 you are looking for. The blue one is the next size up at 6.5" long. You can see they use the same lip size for the 2. The little one, and it is very little, fresh water application I would guess uses a lip that looks to be a very small pikie style lip. The really small one used screw eyes and has a small belly weight the other one has no belly weight and was thru wired not screw eyes.

here are the specs. If you can't read them send me you addy via PM and I will mail the sheet to you. You can see the hook sizes, total weight, lips and such.

Thanks to ProfessorM and tlapinski
 

Snowed in down south today. Looks like I will have something to do if I can get the garage heater on!

Special thanks to ProfessorM and tlapinski for making this happen. You can't get any better help and well qualified technical advice than this.

Happy to assist and lend the plugs out for dissection! That little GTS could be a cool freshwater plug but I have never spoken to anyone that actually fished one. I also have a couple bottle plugs in that size that I have been tempted to throw at the local smallmouth bass population.