I've been flying with yon bárcena's <<yon.apnea>>
latest creation, carbon fiber tips for the Wills Wing T2C. They are very well
made and seem to be quite sturdy. I love handling them and putting them in the
glider.

I have an earlier version that are a little thicker and I'll try those out also.
I also have the Wills Wing tips, made from Mylar.

Here is what Yon said about these:

About design, just before going to the worlds I produced a variant
from the set I sent you that is lighter and slightly more flexible. Almost as
light as those made of fabric but more consistent.

Here is what Steve Pearson said about the earlier version:

I flew them yesterday. It’s really tight fitting the tubes between
the sail and the lever but I managed to force them in on the glider I flew. The
glider flew really nice with them. I won’t have a chance to refly the glider
with our tips but I can’t imagine that I’d be able to tell the difference. They
were stable and clean at all speeds between 17 and 75 mph.

Your tips are very nice and I would be happy to recommend them to any pilot.

Comparing them the Wills Wing configuration:

1. In-flight, the configuration you sent me is already as flexible as ours based
on watching the deformation at low and high speeds

2. The primary installation issue is that the space between the grommet and the
sail is marginally too tight to easily accommodate the aluminum extension tube.
If the tube is too tight, the orientation is fixed and makes it difficult to
align the tip with the Velcro without forcing waves in the tip

3. They are a little more fragile that the foam laminate configuration.

I have the replacement tubes which solves the problem that Steve
had.

I do not know if the tips do anything useful. I am too blunt an instrument to
tell the different between flying with and without them. Steve, of course, feels
that they are useful.

I really like the latest version and they seem much nicer (but I assume much
more expensive) than the Mylar ones from Wills.