AndyO

There aren't too many bumps at Oulton,

I have Tyga rearsets on my Maxton suspended "R" with Dunlop Q2's and don't have a problem (I weigh 12 st) with grounding out.

If it's your 1st time there on the NSR I'd leave the hero blobs on for the morning and see how it goes. Places it might dig in are 1st corner (Old Hall) that is a lovely fast sweeper, and the 1st part of Hislops.
Be wary of big wobbly 4strokes shutting off half way down the avenue, just keep it pinned until you see cascades start to fall away from you !!! Ditto for the top of Clay hill, just keep it pinned and you can run into Druids really late.

Take it easy and have a great track day (It' not a race !!!)

Phil M