Yeah what Eugimon said, start with a set of 3 different sizes, as most of us have all the different 1/60 scales, 
which means you will need the different lengths to incorporate maximum display value when you take into 
account how small a vf1 1/.60 v.2 is to a 1/60 SV-51 lol.  Mind you i prefer to have the larger size over the smaller two, 
just because i don't have balance issues when dislaying stuff. [highlander]It's a kind of magic![/highlander] 
As you can see they are strong little blighters, flexistand can hold one leg (all three prongs) and you can have all 
sorts of fun posing this way. - http://www.macrossworld.com/mwf/uploads/12..._47_2160154.jpg 
http://www.macrossworld.com/mwf/uploads/12...8_46_135586.jpg - this is a 1/48, i could have it holding it this way as long as i wanted, totally safe.