Martyn,
Congratulations on your first segmented bowl! Everyone of us had a first bowl experience and I am sure that almost without exception, it wasn't a great experience. It was, though, a start of a great journey.
What you will find is that each new bowl you make will take half as long, will turn out twice as good and will be a far more positive experience. Make sure you always hold on to this first bowl as through the years it will show you how far you've come in your journey.
I've attached a picture and a WTP project that has been on the Backup CD since 2002. It is a fun project made by my good friend, Kevin Neelley, who was responsible for me getting into segmenting in the first place. It is the first bowl I made. This project has been the first bowl made by hundreds of segmenters. When you open it, look in the right column for 'Supporting Files' and click the 'Round Bowl.pdf' link. This will open an OLD project description that shows the process of making this bowl. Techniques have changed, but it is a great tutorial on segmenting nonetheless.
View attachment Kevin Neelley - Round Bowl.wtp
With regards to turning issues, it is very important that you use the proper turning tools and that they are SHARP. I believe that fingernail or bowl gouge used in the conventional manner be used for all segmented turnings. A bowl gouge, for example can make a scraping, conventional (ride the bevel) or shear cut, depending on the presentation of the gouge to the bowl. In a conventional cut, the gouge 'rides the bevel' and the wood is removed by slicing the wood fibers. By changing the tool presentation, you can make a shear cut that practically eliminates the need for sanding. A scraping cut is where the bevel of the gouge is not in contact with the bowl and it removes wood by scaping the wood fibers from the bowl.
This turning technique is important when turning closed-segment rings (type: Flat in WTP) but mandatory with open-segment bowls.
CLICK HERE to watch a youtube video that demonstrates these techniques.
Enjoy your journey, Martyn.
Lloyd