I have been disc golfing for about 2 years now. the last six months I have gotten more serious about it. My question is would switching to a lighter driver help with my distance. I am a RHBH thrower. all of my driver sidewinder, viking, monster, and t-bird are all 175g I think it's more of a mental thing to me than anything. my question is would I be able to add distance to my drive by switching to lighter driver. I know that they will glide farther but I have the mentality of heavier getting more monetum like a baseball verses wiffle ball. any advice would really help.

Lighter drivers would be fine in most cases ie. 160-165g. Even 150 class if you can handle them! If you throw a lighter disc into the wind, they have a tendency to turn over much quicker. With the wind, throws will usually give you a bit more distance. :)
I would suggest you carry a lightweight driver and midrange in your bag along with your regular plastic. Before you use them in play, I would suggest you visit a nearby field and practice a bit.

Good luck

kingrat tipz (http://www.geocities.com/kingrat6931/)

It is useful to experiment. Part of it seems to depend on the disc. Strangely, I seem to have the best luck with either light discs (150 class) or else weights around 171. When I try discs in the 160s, they just don't seem to cut it. My best two distance discs are a 171-gm Z Flash and a 150-gm JK Pro Valk. They both do way better for me than the 165-gm Champ Orc or 165-gm DX Beast. By the way, I also have a 121-gm Speed Demon that will go really far, but is just too hard to control. It is fun to throw out in the field but too unpredictable to use on the course.

I would suggest if you want to become more serious, then practice approach accuracy from ~200ft, and putting. You don't need to throw +500ft to be a pro.

You could also try strength training. Working on your adominals will help you get your hips turning faster. Dumbell Fly presses increase total arm strength. And Lat' pull downs or rows increase upper back and shoulder strength. I noticed an increase of about 5% in my distance after doing moderate strength training. I concentrated more on conditioning (high reps/lower weight) instead of muscle building (low reps/high weight).

Perhaps that can help you instead of purchasing new plastic.

If all that you want is pure distance you can throw lighter discs around 165 but for control you might find it easier to use heavier discs, the heavier discs will be more consistant and will do the same thing almost every time