I see that Wiener philharmoniker uses a small, tea tray, set of cymbals. Solti was a little ironic about this in a rehearsal I have seen.
I haven't noticed that their cymbals are particularly small. However, I have noticed that they exclusively use dark-sounding (and clunky sounding) old Zildjian cymblas. I generally like my cymbals to sound bright and immediate (Sabians), and my tam-tams to be dark and profound sounding (Wuhans). It's funny to me that Solti would pay much attention to their cymbals. Solti strikes me as not being particularly good with percussion, exception for works that use lots of cymbals and bass drum.
Also SFSO with Tilson Thomas uses that type of cymbals, and completelly ruined an otherwise fantastic R+J Tchaikovsky i had attend.
Similar to the cymbal part in the finale of his 4th symphony, Tchaikovsky's "R&J" Overture has a number of rapid strokes on the cymbals. It wouldn't be easy to execute those cleanly on a big pair of cymbals. They probably should alternate between two pairs on that particular work.
On the other hand Berliner Philh. uses a very sonorous pair of cymbals to nice effect
The Berlin Phil. seems to be pretty good with percussion in general, especially their timpani. However, I've noticed that they've made their fair share of counting mistakes with Mahler in their not-so-distant past (I feel that the BPO knows their Mahler much better these days). I'm also not crazy about their rattle snake sounding tambourine, which all German orchestras seem to favor (must be a particular make that's popular over there). They have a very good sounding gong that seems to speak quite quickly. I'm not sure that it's a Wuhan, but it's at least similar to a Wuhan.