I was having fun today with leadout pro - my first weapon was: LTAG and my secondary: Scar.

There is a major lag when you want to draw your secondary weapon (which in my case was scar).
I hit the "1" button to draw my secondary, for few seconds nothing happen (only icon on the bottom right changed to scar), I hitted again "1" - Ltag has been draw and then again "1" and Scar has been choosen correctly.

Can anybody confirm this?
Dunno how to call it but as for me it looks like a small bug.