Wick problems

[obsessed]

Well , here I am again giving the Libbey 238 stemless rocks another go. This wick is a Cdn18 ( i tried smaller as suggested but it was pitiful)in 464 with 8 % peony rose. Has been burning just over 3 hr and has had rather a large dancing flame most of the time.I did trim before lighting. It is the 3rd burn and has major hang up. So my question is, what do i do ?? Id i go for a smaller wick the hang up will be worse. 

[obsessed]

I have tried to upload photos ... but I cant do it. I shall have to wait until my daughters visit again aarrgghh! It's almost midnight and I want to go to bed , the internet is sooo slow and now my ph wont allow me to do it. I am over- and-out. hahaha night night fellow chandlers!