Best Parabolic Reflector?

Hey peeps, For those of you using a parabolic can you chime in on which you think is the best in regards to the most even lighting? I am tired of my RDWC grow growing like a pyramid. (Im also going to put the parabloic on a light mover)

I am thinking the vertical bulb reflectors are the best because most the light is reflected light for even lighting.. it may be a bit weaker, but that is ok.. my stuff grows too fast as it is!

Thanks for any input... just looking for the best parabolic... I have never used one.

bumpity bump... been researching this for a week and not a lot of info on hoods and parabolic vs the rectangular type.

powerslide - I ended getting this one.. very even light distribution.. it is vertical.. so most of the light is reflected making it more diffuse.. as I said in my previous post, the light will be a little weaker because it is being reflected. My plants in veg grow so fast in RDWC hydro anyway.. so it wouldn't be an issue... just make sure you check the temps because this is not air cooled of course...

http://www.horticulturesource.com/grow-lighting-systems-fixtures-movers-ballasts-sockets-reflectors-components-c21/reflectors-hoods-shields-parts-s24/sunlight-supply-vertical-burning-4-parabolic-white-1-center-piece-8-leaves--p640/?osCsid=3c514afbf66f2aaf403b39cba87cafc9

parabloics are for the scrap pilei have use almost everyone on the market none compare to even a cheap vented hood, only one worth a bean is the vertisontal