On 31/10/2013 01:46, Evan Ludeman wrote:

My view: in many cases there are much better things to spend your
money on. A case in point would be an ASW-20. Quite delightfully
stable and easy to fly on tow on the CG hook, with no tow induced
pitch trim to speak of. You would be silly to dump money into a nose
hook on an 20A model in favor of the automatic hook up elevator
modification (expensive, but a life saver).
......
Evan Ludeman / T8

Nose hooks are compulsory in Australia.

Shortly after I got my 20, I asked a fellow owner if he got the same
loud drumming vibration (coming from under my legs) that I did around
70kts and above. He said "No."

I asked what he thought might cause it. He said "It's the cavity behind
the nose hook opening resonating. I asked why he didn't have the noise.
He said "Because I taped up the nose hook opening. If I use the nose
hook it causes an annoying resonance above about 70 knots. I launch on
the CG hook."

GC