The only time the plants being too heavy and falling, bending the stem was a real problem was when the yoyos were placed significantly low on the branch, as I'm sure they're not intended. Guesstimate, more than 10 inches from the top?
It's situation dependent. Yoyos you must be able to attach high enough on a cola or it will "self super crop" under the weight sometimes still. Yoyos can be tough depending on your light and tent size as well, you need room to hang and stretch them out. Large, square LED fixtures can make that...
The Kritic Auto would be my choice for an introduction to Kannabia. Primarily a photoperiod grower, but could run these during a veg cycle. Thanks for the chance.
Minute pirate bugs, amblyseius cucumeris (if you're still in veg) and nematodes (I believe SF) to finish the run. After that, nuclear options to clean to the tent if indoors.
Im a big fan of the "nuclear" options myself, but, for thrips during flower the best thing I have personally found are minute pirate bugs. I was thoroughly impressed with how fast and how many of those little bastards they could kill.