Hi PE guy, I prefer not to use a clip-on on my dropshots. Especially when I fish with small dropshots as it make the profile a tad bigger. I just do the rapala knot every time. PS: I found that I caught more fish using the rapala knot than on the fig of eight. The reason is that the dropshot can rotate freely and perform the action it is supposed to do.
Hope I helped,
tight lines:fishn