I use exactly those sticks, they can be really good
prosThey are very good first non wooden hand sticks
Really good for grinds
They arrive with plenty of string
There comfy to hold
There small, so good for genocides and suicides
They don't hurt a lot (I was doing a full genocide once and a stick hit my head and it only hurt for 10 mins)
consIf you do really fast motions (like langerz) the string breaks easily
They can bend easily
There small so it takes longer to speed up
The base of mine has some how rusted a bit
So to my list there are more pros than cons, you may also want to see this thread
http://diabolo.ca/forum/index.php?topic=10242.0Hope this helps
Rob