achromatic and wide angle lenses

[Spit]

Hi, I've been looking around at buying a wide angle lens attachment for my HVX200, and I was curious if any of you can recommend one? I've been looking at
Century Precision Optics and Cavision... What do you use?

Also, I'm wondering if anyone has tried the Letus35 HVX200 Optimization Kit. How intense of an improvement is the achromatic lens?
Thanks,