Posted for "John Hafen" <j.hafen@comcast.net>:

 Reports are that the new "Boeing" wing tips offered by Lancair offer much
 better roll authority.  That is what I'm putting on my IVP.  No winglets.
 

"""
 I am building a IV-P. I plan to put on the winglets. I understand a side
 effect of the winglets are increased stick load for banks. Many gliders that
 extend their wingspan extend the ailerons as well. I was wondering if anyone
 has considered an aileron extension embedded in the winglet to get a little
 better roll authority.
 
 r.t.s
"""