30% margin is a lot...
...and 'planes don't fall out of the sky at stall speed.
If your cub Vs is 38mph, then your approach speed is 1.3x or ~50mph. This gives you a margin of 10kts, which if you use the 1/2 gust factor rule, means you've got wind gusting some 20kts - not exactly unchallenging conditions.
Even if the IAS drops suddenly, you've still got the stick and the throttle to give you some more - probably more than quick enough to recover you a safe margin again if you've got your mind on the job.
If you're flying directly into 10G30 and add half the gust, then you'll arrive with 2.5 times the kinetic energy than you would at your normal Vapp.
Just my zwei pfennigs
A