Hi Jillsy,
Ok, I'm not a carver but I am a pyrographer so my perspective is a bit different.
The tips I can give you are relevant to any type of burning. First, never burn over paint, stain, etc. Burning should only be done on bare wood for several reasons...most important is that it's not safe!
The second tip I can give you is that you don't need a lot of tips to do anything. When I get a new burner asking for recommendations for what tips to get I usually say you need only 3 to do just about anything: the HD5MP, the bent spear shader which is "my pen", either the 9S, 99.015 or the new one I had Razertip make for me 9P. NOt even available yet but on it's way and #13 (F14M, HD14SM or my new one #14D).
With those you can do just about anything. I use the HD5MP for 99% of my work. You can shade, do lines of varying thickness by using the side, calligraphy, etc.
With the #9 or 99 you can do pointilism, writing, lines, etc.
the #14's are wonderful for nice clean, crisp lines, shading, hatching, cross-hatching, etc.
Some of the new pens that Razertip has worked with me to make are brand new and not even available yet but we should have them by next week. Some are still currently exclusive to me but if they are as popular as the HD5MP and the F99 ball tips they will soon become part of their regular line up. I don't have them in stock yet, only the prototypes but they should be in next week and I'm sooooo excited.
New:
F9P - we took the F9S and made it a bit smaller, rounded the tip so it's pointed and not sharp so it will glide over the wood better for writing.
#14D (HD or F) - this is the #14 modified to be a bit smaller with a blunt heel which makes it more versatile and easier to maneuver for curved lines. I already have these in stock.
#99 - new tiny sizes .08 & 1.1 mm's....these babies are tiny...so tiny I couldn't get a good photo of the prototype. You are going to be able to do cursive writing pointilism, fine lines and like the other ball tips will glide over the wood. These are going to be like using a fine tipped pen.
Of course all of these can be used in carving as well as flat burning.
I always say that the use of each pen is only limited by your imagination.
Nedra