Bink,
Quite an excellent question!!!
Well, to start, pretty much all of the well known 'Indy' Whipmakers out there will use two plaited bellies in their indywhips. Some use a shot bag as the core, with a four plait belly, and then a bolster and another four plait belly, another bolster and an overlay. Some do a leather core(rawhide, kips hide, kangaroo hide) then a four plait, bolster, four plait, bolster, overlay. Some will do it with a four or six plait first belly, and an 8 plait second belly. It all depends on the maker.
On the shorter whips, generally there is only one "plaited belly" but there are bolsters and fillers and the core. For me, I only do one plaited belly on anything shorter than 5 foot. There isn't really a need for a second belly, and not alot of room for one either if you want to make a smooth whip.
Basically, what the double plaited belly mostly does is give the thong more weight to roll out with. It also builds up the thickness of the thong, along with the bolsters. On the shorter whips, there is less distance the whip needs to roll out and less weight needed to do it. It is so short that there is less room for a taper that goes from so large to so small.
I've made three and four footers before with two plaited bellies, and I've seen some other makers who have done four foots with two plaited bellies, and I didn't like the boubles nearly as much as the single plaited. Usually they are too heavy, and the whip isn't as smooth.
Something else to think about is stockwhips, I don't think I've ever seen a stockwhip with two plaited bellies. At least all the whipmakers I know in australia only use one plaited belly in their stockwhips, and they work excellent.
The main difference in feel between a 6 foot stockwhip and a six foot bullwhip(other than the obvioious size and action difference) is the weight. The six foot stockwhip, which is really about 8 foot when you include the handle, is a lot lighter than the six foot bullwhip.
What is the difference between a single belly whip and a double belly whip? I would assume that a double belly whip would be stronger, yet stiffer than a single, but how does this affect the construction, durability, feel, and cracking of a whip? Do whip users have a preference, and why?
bink
So basically, to answer your questions specifically;
I dont think stronger or stiffer is really an issue with the belly construction, I made a signalwhip last week that was 16 plait(supposed to be more flexible, right?) with no plaited belly, just a shotbag and thats it, and it is one of the stiffest whips I've made. stiffer than the 8 and 12 plaits that were sitting next to it. You could roll it up, but it wouldn't stay rolled, it just wanted to stay out straight.
Durability is more based on the outer layer construction than the bellies. What makes a whip more durable is wider cut strands. More specifically wider strands at the point of the whip, where it is more likely to hit the ground and take abuse and abraision. More surface area to take the abuse. Thats why Indywhips are almost always made with the 6 strands at the end instead of the 8. that way you can cut wider strands and have thicker stronger strands at the end. It has almost nothing to do with the bellies.
The bellies do have to do with the feel of the whip for about the first half of it, not much but if you know what your looking for you can tell. Also the weight is something you'll notice.
Ok, I've rambled on a bit, and probobly repeated myself, but I hope it helps. Let me know if I missed something. And any of the other whipmakers lets hear from you, anything you've found differently in your experience, or anything I missed?
Regards,
Paul Nolan
MidWestWhips