Alex,
I have a CS LTC and, although it has a khukuri shape, IMO it is more of a heavy machete than a true khukuri. I haven't handled either of CS's heavier models so I can't pass judgement. However, I suggest you look at the traditional khukuris from Himalayan Imports & Gurka House (both have discussion forums here in the Makers/Mfgrs section) before deciding.
You may also want to search the Reviews forum. Cliff Stamp has reviewed several khukuris and, I believe, may have even done a head-to-head comparison of some models.
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Cheers,
--+Brian+--
I may be goin' to hell in a bucket, Babe, but at least I'm enjoyin' the ride.