We did the same, no problem with OA but don't expect to double
performance.
Regards.

--
Jean-Philippe Vassilakis
SOFIE products & Ellipsometers
Jobin-Yvon Thin Films Division
7 Route d'Egly    91290 Arpajon France
Tel: +33 (0)1 6490 9365
Fax: +33 (0)1 6083 9183
mailto:[log in to unmask]
http://www.jyhoriba.com