Hooking relays to Electric Life Power Window Kits - 69 Firebird

[ModernMuseum]

I have a set of crappy Electric Life window units in my 69 Firebird all around. I know the Nu Relic units are a lot better from what I've read. My windows don't roll up very well and drop crazy fast when rolling down.

However, a more economical fix might be to hook the switches to relays to get more power to the window motors. Has anyone done this? Is it worth it?

Anyone have a diagram of how to do this?