I have tried there products, but not side by side with mine. I can tell you they are similar, but there are small differences. My syrups have a tartness to them, like caramelized figs and dried fruits. This flavor is similar to some of the nicer single origin dark chocolates that I have tried, but it lacks that quintessential coco flavor.
There is an issue with the Sugar #5 recipe. It is not a problem, rather it is something to keep in mind. Every time you bring the sugar solution up to its top temp its max temp will lower for the next round of cooking. This means that the smoke point will lower each time.
Have you tried my Sugar #5. It is good and it is Belgium-ie. I would suggest trying the syrup as it is cheap to make and it will give you some insight to the process.
I have a Sugar #6 that I want to try, but have not gotten around to. What I want to do is cook it three times. The first time I want to cook it to 300F then render it to a syrup at 240F and let it cool. On the second cooking I want to bring it to 290F, again render to a syrup at 240F and let it cool. Then do it one more time to 280F render to syrup and let cool. I do not know if this will be a success or a big bomb. I plan to try it some time soon. If you have the sugar and time you might try a process like this. It will defiantly be dark and fragrant. This would destroy a lot of the fermentability of the product, but It might also be delicious.