I would plan my team differently in cup / play-off ties as there ate no tactical. Just in case matches don't go the full 15 heats, could leave yourself weaker in heats 13/14?
For example
1. Cook
2. Cairns
3. Lawson
4. Rushen
5. Kerr
6. Newman
7. Lightcap
If it's called off after 12 heats, at least Lawson has had 4 rides, if its called off after 13, it's the weakest (statistically) top 5 rider missing his last ride.
For Scunthorpe, providing they can head to the second leg with a lead, I'd have a weaker number 5 & "sacrifice" heat 13 for points elsewhere.
As a neutral I'd like Scunthorpe to win, but can't see it happening.