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for some reasons the Kowa web pages for the current small diameter eyepieces (TE-9Z 20-60 zoom, TE-14WD 30 wide and TE-17HD 25 long eye relief) don't list 613/614 but they do list 610/611 as compatible which were the sam as non-Fluorite variants.
So it should work - maybe take you scope to a brick&mortar store which stocks Kowa or just order online with some place with a return policy.