Skyelines wrote:The fly sheet material is effectively impermeable to rain so any moisture on the inside whether the inner and outer are touching or not is down to condensation.
Not sure I would altogether agree with your comment Skyelines. The OP has already stated it is not down to condensation.
My own issues with this particular tent were the same. If erected in a decent manner then the tent was excellent. However more often than not, and for reasons beyond me, I often found the tent erected with flysheet touching or close to inner (sagging in middle almost if you will). When this happened and there had been a element of rain or precipitation then it did indeed soak through.
I used this tent primarily last year whilst walking WHW and as I said, after a long days walking I wasn't mentally atuned to erecting tent. However on other occasions (when I don't appear to have done anything different) it would be fine.
I often put this down to myself. It is also a great shame because otherwise the tent is excellent, very spacious, not overly heavy, and when erected in a decent manner more than capable in adverse weather conditions.
I, however, like the OP found this to be too hit and miss, so eventually went for upgrade.