Mak question for Roland

RC, After taking your advice to not use slumped glass for a corrector, I've been in touch with a gentleman who has a couple of BK-7 correctors for an 8" c.a. Gregory. The correctors are finished but have an as yet undetermined number of scratches that will need to be reground.The gentleman is asking for an offer on 2 of the correctors and is awaiting a response from me now. Could you please advise what would be a reasonable offer to make on 2-8.5" blanks, BK-7.I have no idea of thickness, R's, just they are for a Gregory Mak. Thanks, I'd get some RFQ's but that takes time and I'd like to not miss making an offer. Thanks very much.

BK7 in high quality level costs approximately $22 per lb. Have him weigh the glass and you can decide what it's worth. I would not pay for the grinding time, since it probably was not done right anyway.

Roland Christen