Advice on power tubes: Two matched pairs but the quad isn't matched

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My usual tube vendor is out of stock on Genalex KT 88 power tubes. I need a matched quad. So I ordered two matched pairs from a different vendor. I received 2 matched pairs but the pairs differ over 25% on Gm. 8300 on one matched pair and 6200 on the other matched pair.

In a Cary SLI-80 Int. Amp should I split the mixed pairs and put one of each pair in each channel? Or should I put a matched pair in each channel?

Would bias change more rapidly if the pairs are split? The Cary is manual bias.

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Topic - Advice on power tubes: Two matched pairs but the quad isn't matched - Terry P 15:29:47 01/21/22 (6)

RE: Advice on power tubes: Two matched pairs but the quad isn't matched - Mel 08:52:14 01/22/22 (1)

RE: Advice on power tubes: Two matched pairs but the quad isn't matched - Terry P 10:50:35 01/22/22 (0)

RE: Advice on power tubes: Two matched pairs but the quad isn't matched - Tom Bavis 08:30:06 01/22/22 (1)

RE: Advice on power tubes: Two matched pairs but the quad isn't matched - Terry P 10:49:14 01/22/22 (0)

RE: Advice on power tubes: Two matched pairs but the quad isn't matched - Uncle Mike 02:42:26 01/22/22 (1)

RE: Advice on power tubes: Two matched pairs but the quad isn't matche - Terry P 10:47:25 01/22/22 (0)

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