If you used the standard thin wall tube, do a good heat treat on it when you finish smothing up the edges.
With glass it is called flame polishing. it will add months of life to the tube.
A pocket torch is great (little butane ones) But I just use a BBQ grill lighter.
Flame polishing is to get it hot enough to fuse the ends that may have gotten some micro cracks from the cutting, they will propagate into large cracks about 3 days after you drop it if you don't do this. Oh yea you will drop it.
i tried heating up with some fire. those strong ones and it melted the edge -_-