Flying snapper, if you're finding the workload a bit high when changing to wing down
during the flare try changing just prior to arriving over the runway eg the undershoot area.
Also in any light a/c I can think of the wing tip is nowhere near the ground
as long as you still have enough rudder input to maintain the heading ie the AoB isn't large enough. You will run out of rudder authority long before the wing is likely to scrape the runway.
Next time you're at the a/c stand some behind it. Position a ruler a ruler at arms length so that it appears to go from a mainwheel to the wingtip on that side. Now measure - or guesstimate - the angle between the ground & the ruler. It's quite large even on low wing a/c.
That angle is approximately the AoB you would need to have to scrape the wingtip.
I have heard (& seen the bodgie repair job) of a bloke scraping the wingtip in a C210
but he was a d!ckhead trying to show off by doing a one-wheel touch and go ==> lost control ==> eventually got airborne at some large angle to the runway direction after doing what was effectively a medium/steep level turn while still on the ground.