I've never had a problem with undrilled bowling balls cracking. I wouldn't start the bid that high maybe $125 or so and put a reserve just in case.
I saw an undrilled 15lb Sapphire Zone go for $200 over the summer. So I listed mine the same day and it when for $300 24hours later. I loved that ball but I would take $300 over drilling it for myself. Just curious. If I do drill one up it will probably be the ETS. It was a great ball when I had one back in the day.
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" men lie, women lie, numbers don't "