> The problem seems to bee with the first stage because the G-250 works >good together with a Poseidon first stage. The mk20 abandoned the traditional SP spec kit grease for a thermal bushing. The general feeling is that the bushing does not work nearly as well. However, it is possible to also install the grease, as for the earlier models, and that seems to be what knowledgeable cold water divers are doing. I use a metal cased 109 with a spec kitted Mk 5 for ice. Works great. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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