Doug
There is nothing wrong with the Gu25 WITH VG's.
It is a cheap and easy fix to loss of laminar flow that occcurs with any
debris on the canard.
From my viewpoint you either have the VG's or you are going to scare
yourself -REALLY BAD sometime or other flying with that wing. There is
nothing sacred with placement. I have seen the VG's several places,
different spacing, size etc. Some people are discussing that subject. And
there is a "recommended" place for them. But these planes ARE called
Experimental so adventuresome individuals try different placements. Nuff
said, but just my opinion ( and 15 years of listening) as I don't own one
and have never flown one.

The LS-1 is different.
It does not need VG's to fly OK.
But I am trying to fix a problem that most drivers don't even know they
have. In my plane there is a loss of lift from the top of the elevator when
the elevator goes down even the least little bit. I figure if I can get the
lift back I can land slower, and GOD knows we could use a plane that lands
slower. Plane flys OK but I want more. It's not a problem.
It's just that a few of us want to know how the airflow is traveling over
the canard and don't really know how to figure it out and really all the
canards are similar but not EXACTLY the same so everyone's flows are
slightly different. Anyway, it is not a PROBLEM. We are just trying to
figure airflow out for optimum speed. We are Experimenting! Just my
thoughts.
Larry