Modified version of your example .xrns
multisync_lfo_test_2.xrns
Here’s another example I posted to an earlier thread, which uses a similar technique:
dblue-2010-04-20-lil-wayne-wobble.xrns
And another random one for fun:
dblue-2010-04-10-wobbly-bass-2.xrns
For my own usage, I prefer not to link keys/notes to the LFO frequencies, because I find it a bit restrictive for certain notes to only ‘wobble’ at certain frequencies. I prefer to just reset the LFO manually to whatever frequency I want at that particular moment. I do like to link the LFO reset to notes, though, to make sure that my LFO cycles are always hitting precisely the way I want them to, rather than running wild.
Another thing I find useful is to program multiple cycles into a custom envelope shape on the LFO, rather than use the default sine/saw/square/etc. This allows me to go faster than 1 LPC if I want to, essentially getting double time out of the LFO. Or you could triple it, quadruple it, etc. Depends how silly you want to get. 
There are quite a lot of fun variations you can do on this technique