Multi columned reflux still

[SuperCamel]

Hi,

I have a stove top still and I'm not entirely impressed with it. It works alright but it could be better. I would really like to make a taller column to get a higher quality product but since my stove has an exhaust fan over it the column height is limited to about 300mm. My solution is to have multiple short columns connected in series. Once the vapour reaches the top of the first column it goes back down to the bottom of the next column and so on. If there are 4x 300mm columns the vapour would travel through 1200mm of packing. So therefore the resulting product should be fantastic, right??

Are there any obvious flaws in this design?