The usual caveats regarding small sample sizes and anecdotal evidence apply, but in 3 days of 100 10 pulls each, I've gotten 62, 68, and 61 R weapons, or an average of ~64. I don't know what the odds were previously, but this feels lower. The other side effect is that, with fewer chaff drops to resell, less of the gem cost is recouped. I'm not looking forward to having to spend even more time farming gem quests just to keep up.