I hurt my wrist this fall, just before I started a new job in construction, so I had to lay off bowling for a month. Since then, I have had a couple balls drilled up in 14 lb, where everything I used previously was 15 lb. With the 14 lb balls my scores have been very consistant, and I actually get more revs on the ball since it is easy to follow through. Also, hitting my mark seems like less effort, and I am less tired after bowling. The 14lb stuff seems to carry well, especially on light hits. As for ball deflecting off pins, I don't see this as an issue. I think you would notice this on a 12 or 13 lb ball, but it is not a problem for me on 14lb balls.
I feel I am getting greater recovery than ever with the 14lb balls, and I am going to stick with them. My suggestion to you would be if you have a favorite 15lb ball and drilling, duplicate that one in 14lb and see how you like it, before investing further. The lighter ball does give me the ability to change ball speed if I need to as lanes start to break down.
Marker