its very easy and effective id go for it myself, im doing something similar to mine atm, if you do it from a young age aswell you can change the structure, the plant sends hormones to the highest shoots so when you bring the main tip below the rest of the plant it tells the other shoots to grow, if you have a particularly tall plant you can change it to a more bushy type with an even canopy thats much easier to deal with/light well and you can get good results.
if the stems are stiff do it in stages, just bend it over a little then a bit more in a few hours/a day etc. just to avoid snapping the stem(most this will be very hard to do but some have woody stiff stems)
pics are just for an idea, you wouldnt need to do anything as complicated, one bend over should do the trick.
i like to loop string behind a node so it doesnt slip or damage any new branches etc. knots can get too tight when the stem gets thicker etc.
its best to do in early veg but i think you arent too far along anyway.