Very nice shrimpy . Have you ever done jointed swin baits like that?
Frank, I started a few projects with jointed baits a long time ago but wasn’t really happy with the baits performance. I made something that locked like a Rapala Sliver wobbler with a Tomic shaped front/head to get a bait that would resemble a sand eel and. I glued the wire connection between the parts with CA glue and then coated the small area where the wires meet with some epoxy just to get some space in the mould. I cant really see any other limitations with the hot glue other than the size of the bait or part of the bait one can do I one go. I have mainly made sand eel like plugs and lip less wobblers with a length up to 4,5 inch and a diameter up to about 0,5 inch. And I have never had any problems with getting those amounts of glue into the mould.
In the beginning when I started to cast with hot glue I was lucky enough to have an “industrial grade” glue gun that I had been give by a friend who used them at work. The gun was more or less in the end off its lifespan but for my normal purpose (fly tying) it was perfect because it had an adjustable temperature ranging from 285ºF-445ºF. When I started to use it for the casting the higher working temperatures really came to its right together with the high melting capacity per minute. After a year or so it throw in the towel and when I started to look around for a replacement I realised that the asking price for the one I had used was about $260 here in Sweden. That was a bit over the top for my budget at that time so I went for a high grade consumer gun that hade a working temperature of 403°F and an asking price of about $35. Since then, 11-12 years ago, I’ve go through a few these guns and the temp is okay but every know and then I miss the capacity of the first glue gun. If I would aim to make big baits I would certainly consider a pro gun that in North America probably don’t cost more than $150.
One thing to bear in mind is that there are glue sticks and there are glue sticks. Many of the round ones I run into here are 11 or 12 millimetre. If a gun is made for 12 millimetre sticks you really shouldn’t try force an 11 millimetre stick into it as there is a big risk that the glue will be pressed backwards towards the feeding mechanism and then flood it and make a general mess and sooner or later stop then feeding of the glue stick. Also one should try to figure out which is the recommended working temperature of the glue stick. If this doesn’t match the glue gun one could be in for some trouble.