yes agreed more work than some methods, but the owner of a big dispensary in California has given me over 70 seeds to germinate for him due to the success rate i have with them... the last one, a really special one from amsterdam needed 100% success, and it's doing amazing. overworked but it's weeks old and about to give off about 4 clones.
it's much easier and faster than normal germination, plant is above ground in about 30 hours or a bit over from the time of soaking, leaves green in a few hours, and the growth begins.
tying a small thread helps a lot, but must untie it carefully and adjust. i'm making the latest seed into a clone mother using threads, and it's just like if i topped it, but leaving the top, tie below/above node, the plant puts out side arms in response to the tie-stress.
tying plants, bending them, growing at different angles over different weeks, can have huge impact.
adventitious roots can develop from the tie zones by making them into air-layers on flowering branches, then at the end of flowering, there's a rootball to cure with, and yet the mama plant can remain, goes to veg a bit and flower again.. two months is way long enough to develop a good air layer/root system from the tie zones.. and making them early starts the plant building up callous tissue fast, so i vote for the ties, with care of course. the stress makes plants stronger..
also, i spray a 10% ethanol+distilled water foliar spray.. it's amazing how it helps the plant strengthen against the tie.. so it's a combination technique, the ethanol is rocketfuel for photosynthesis, plants use every aspect of the substance to increase carbon fixation, supply electrons for photosynthesis, probably more. but if you try it, do not get ethanol into the root system, foliage only, daytime phase. roots are harmed by ethanol so put a reflective cover over soil to protect from spray. if i didn't use the ethanol chemistries, the tie wouldn't work as well.
to help illustrate, i will post photos of current seedlings using these methods in coming days..