Oops. I didn't read your original post closely enough. I think you would be find sticking with the 1.7. If you were deciding which to buy, however, I think the 1.4 is worth the difference in cost.
Steven Desjardins Department of Chemistry Washington and Lee University Lexington, VA 24450 (540) 458-8873 FAX: (540) 458-8878 [EMAIL PROTECTED]
