Hmmm... a little about myself... I am 5'3'' and 130lbs... so you can imagine what kind of power structure I might have. I got into DG because I played Ultimate without alot of guys who played. That said, I started playing throwing 175g discs, because I thought that the weight being similar to Ultimate discs. THen someone told me that Unless I could consistently bomb 270' (my average drive is like 220-240, based on my stride) I could throw lighter, and so earlier this summer I tried my first 150g, which was an R-Pro Boss. I didn't exactly shatter my distance record, I've gotten to 270 more consistently. But I do have to say that driving longer distances was much easier, and I had WAY more control of my discs.
The 150s I have in my bag
Gateway Illusion
Gateway Blurr
R-Pro Boss
I do think that 150 may be TOO light for me, or maybe I am just beating my these discs too fast, but I find myself turning over the Boss even with hyzer. But the control I developed throwing lighter discs has allowed me to throw my heavier discs almost as far. I think 160s will be the happy medium for me..