I am nearing completion of mine with a Saito 84 and keleo exhaust with Robart retracts .With my setup I need around 1200g lead in the nose. I currently have 700g inside the cowl using lead shot and finishing resin.
I have made a few changes through the assembly, most of which have already be documented by others.
I hope to fly this in a couple of weeks time.
Neil

Robart legs rotated 180 degrees to allow free movement of the scissor part.


Intake reduced in length to accommodate the exhaust.




Blocks tapped and glued in place to allow 6mm plastic screws to be used.


Lead shot and zpoxy laminating resin currently curing. Still more to add.


Rudder servo moved to the tail and linked with the steerable tail wheel via pull pull wiring inside.


Brass tube used to feed the overflow between the area of the exhaust and engine