Handbrake not efficient enough for IVA

[Wain]

I have just signed upto Locost builders now. After reading that threat it got me thinking, a piece of 3mm steel in a V shape mounted horizontally; longest end going to handbrake and shorter connected to brake cables, and like you say if i add holes i can adjust for optimal leverage.
I will post on Locost builders to see if he can share a pick, see if it is the same as what is in my head.