Well, I've done the nuru massage with spinners (Savannah Beaujolais http://www.massageplanet.net/showthread.php?t=59469), the "regular" shaped ladies (http://www.massageplanet.net/showthread.php?t=64246), and the more well endowed like Nibbles and Vikki Lynn (doubles: Man, was THAT an experience!). There simply is no way I can say any one of them is better than the other because of the different "textures" of the flesh-on-slippery-flesh of the nuru experience.
It is an absolute delight to be able to move the slim lady around strategically while she's on top, or give her the benefit of your weight and leverage from the top, the ultra-frictionlessness of the experience makes for some VERY interesting contact posibilities. But in addition to that, the more full-figured ladies have a lot of benefial qualities. Russian "a la" goo is so much more enhanced, either from above or below. But it's not just the Russian, its the Italian, the inner knee Norwegian, the foot fun Formosan, the...if the goo goes there, it's fun. And I like the weight of the body massage from the larger girls using their pelvic bones (in this fantasy) as a massage tool, or their feet or knee or lips (the goo tastes like distilled water) or name it, the big girls got more tool to work with, ya know?
But again, this in no way detracts from the mid-range or spinners. Each has their very own set of attractions. You have GOT to try the nuru to see that it can be one of the sensual, erotic, hilarious, just straight-out FUN experiences we can partake in this community. Ask most anyone, provider or monger, who has done it. I believe that almost without exception, big, small, fast, slow, on top or bottom or sideways, most will claim that it was great. And the big girls try harder, huh?