hypothetical major problem with well respected board member

[drcy]

If this is a case of people making an agreement to lower the final price, the OP maybe should drop the issue. Some might call it collusion-- sort of a form of reverse shilling.

But, as earlier noted, with group lots it's not always clear cut because two bidders may want and not want different stuff from the lot and that may be an important part of the reason they make an agreement.

I'd never go in with multiple people on a lot, because it sounds too messy and confusing. Anything that requires a spreadsheet to document what goes where is something on which I'd pass.