Hello folks

I've decided to built my first topit, but I encountered a serious obstacle. When I do stage magic I already have two holders on my left part of the jacket for silk and additional cards, and I wanted to install topit here.

I was taught to attach holders to the jacket, so I can move it freely, and no one can see anything. If my topit was to end before those holders it would be only 17 cm (6.6"), which is a bit short. I will use Michael Ammar's pattern.

What is the minimal horizontal length of the topit at the lower line? I suppose the longer is better, because there is no risk of throwing things over the topit. I also thought about having my topit shorter at the lower line and longer at the upper part (above those holders).

Is it possible to attach two holders to the topit itself?