As the title says-

Holster recommendations for a G20LS??

Also, maybe an option for use with a TLR-1.

Nothing concrete. .. but the ideal holster for my upcoming longslide build would be something like a Diamond D chest holster - but something that included support for a Surefire X300 and an RMR... and perhaps a CTC lasergrip

From the Lone Wolf website they have a link to this holster...

http://www.holstersplus.com/Detail.aspx?PROD=1203

I carry my G20 in this holster made by Bulldog.  Very comfortable.