My use of alpaca to date has been as a yarn for texture. I like to do this as it takes up natural dyes slightly differently than wool adding both texture and shades simultaneously. You can see this in the madder dyed piece below , where the alpaca yarn is at the top and slightly lighter than the surrounding wool
It has less scales and less crimp than wool fibre. Perhaps it would be very hard to felt.
With four thin layers laid out I just used my normal techniques and only cold water and found I could easily and quickly make a small sample. I had embellished the piece with a small amout of darker shades is alpaca and they were well connected. This piece is light and strong and slightly hairy.
I tried again , using finer lines of the darker fibres and adding some cords. Again easily felted , but overall not as pleasing as my first piece , the dark cord really detracts from the rest of the composition.
I am encouraged to seek out the alpaca fibres I have in my stash and test them out , and I think I am going to try a bit of solar dyeing with some onion and pomegranate on my window sill on these two samples.