You can drill such ball any way you want - as long as it remeins within legal limits. With the low top weight, you will hardly need a balance hole with a strong pin position. In fact, it would be pretty good for a pin axis drilling

Anyway, the ball reaction might appear quite or relatively smooth - higher TW tends to emphasize the breakpoint reaction once the core migrates to its stable PSA and it helps the ball to be pushed further down the lane before it breaks. But I guess you'd only notice the difference when you have the same ball with higher TW as reference and the same drill.

IMHO, there's nothing against your setup idea.
--------------------
DizzyFugu - Reporting from Germany

Confused by bowling?
Check out BR.com's vault of wisdom: the unofficial FAQ section