Tight windows

[32phil]

I just replaced the window channels in my 32 Tudor.
I installed a complete Bob Drake kit.
The door glass is a little tight especially the right side going up, down is OK.
The regulator works fine without the glass.
Is there a lubricant I can apply ?
A friend suggested bar soap or candle wax.
I kinda like the candle wax idea.
I remember my Dad having a tube of what looked like wax that he rubbed on the tracks in a Chevy he had. That was at least 60 years ago !
Any ideas ?
Thanks.