K is the answer.
I got a taste for K a couple of years ago. I find it a bit like Nitrous in that while it isn't too bad on it's own...K really should be taken as an addition to other substances for maximum enjoyment.
Haven't tried it with G, but it goes down so well with E, it's awesome. I'd suggest a point to start with about two hours after your E kicks in.
Also goes well with speed and crystal meth.
Didn't really like it with LSD, too spacey for my liking.
K is a pretty tricky drug to dose successfully, as the ammount required is alot smaller than what most people are used to. ( ie with MDMA powder, coke, speed etc.)
I think the majority of bad experiences that people associate with K come for taking too much. ( Like the time I was reduced to walking on all fours at the Drome in London!)
Alot of people have difficulty dancing/remaining vertical etc. after taking K. I'd suggest maybe taking it at home or at a house party along with some good E, before going on the road with it.
As far as climbing out of a "K hole", I haven't found speed, or meth or similar to be of assistance. Comfort, immobility, reassurance, and time seem to be the go.
------------------
Toeing the line vs. the "E-Conspiracy"