With my +8 , I find that I am having to make small adjustments to the front ride height quite often.
There is a lot more "stiction" in the system with the wide tyres (205/60 x 15) of the +8, and sometimes it appears quite difficult to hit the "sweet spot"
Once achieved it is then a case of just keeping a watchful eye on it. Sometimes the ride height appears to lower (rebound spring tight) and at others it goes the other way (rebound spring too loose)
Rather than dropping the car off the jack I generally give the steering a few lock to lock turns with the tyres fully loaded, that seems to give the most consistent results.
When it is perfect the result is really very pleasing , no (or very minimal) roll , nice ride (for a trad Morgan) , and a nice "tight feel" to the turn in. Over time one of these factors goes just "off" a little, so then it is time get out the spanners and make a few adjustments. No big deal , and it is worth it to me for the improvement I can detect when it is perfect.