I would recommend the X35 over the X30 on the basis of the new lamp

I upgraded from an X9 to an X95 and am blown away by the improvement in the lamp.
The new one is considerably brighter but more importantly it doesn't loose brightness as quickly as the old one did. I have 300 hours on the lamp with minimal reduction in brightness. The old lamp had lost at least 30% at this stage

The other issue was that the old lamp required at least 30 minutes warm up to settle to its stable colour. It also drifted quickly and required recalibration every 100 hours or so. The new lamp has retained it's colour within about 5 de over the 300 hour period.

861v8+ID41 Revelation One filter, HD621, Musical Fidelity M8 700 mono blocks, Focal Scala (x2), Focal Mini Utopia (x3), Velodyne DD18, Oppo BD105, Roon NUC, 218, Radiance 2021, JVC X9000