I too am used to frames that are very HL and have played with the most HL prestige Mids before my PT630. Which is why I used to fancy the more HL batches of the PT630 but now I like them all.No, I don't normally use BB. I'm using Pro Supex maxim. However, I have used BB and am comfortable with the string. I actually like the way the string performed on the frame.
In regards to the SW>>> it is more due to me being more comfortable with a frame that is **VERY** head light. Although I thought about adding lead to the handle, I'm not too into making adjustments on frames with lead. Too much work involved in "getting it right". This results in focusing too much on equipment, rather than my own stokes and adjustments I should make.
I think putting a normal head guard would really resolve this issue. Anyway, the frame as I said is a monster. Extremely good frame, and not as flexible as I thought. Felt just right.
anyway, you can use Iprestige MP tapered CAPS that are a bit lighter than the original CAPS., just a thought