Advice on weapons slings needed

[Endorphin Rush]

Gentlemen...

I need your collective advice on weapons slings...specifically slings for a Colt M4.

I am currently using an issued Giles sling, however, have realized it's shortcomings over time. For one, it makes transitions to the weak side nearly impossible. And secondly, is a major pain in the *ss (ok, the neck...literally) when worn for any extended time.

I've considered the Chalker sling and am requesting your personal experiences, both positive and negative.

Two questions, specifically...once mounted, does it tend to allow the weapon to progressively ride down on the body when not supported in the firing position??? And are there any problems with the weapon coming detached from the sling inadvertently???

Any shared experiences will be appreciated...

Thanks
ER