Pickles
I have a terrible habit of swapping terms for things occasionaly, so apologies if my posts have swapped terms inconsistantly. The DLF is Dynamic Load Factor - this is the same as the amplification factor I mentioned in a previous post and is just the ratio of system response under dynamic loading compared to static loading and can usually be regarded as being between 1 and 2. If you hit resonance however, the DLF can become [in theory] infinitely large [for an undamped system].
The conductor is the structure the riser passes through just before the xmas tree. The riser is normally 'chocked' here to limit lateral movement to whatever to deemed acceptable.