(That post is now gone, but I'll comment on the referenced article anyway.)
Unfortunately, the comment in that article about "inside' and "outside" english is just plain wrong. Whether outside english shortens or lengthens the bank depends on which way the cue ball is travelling. For example, if the cue ball is crossing the path of the banked ball, outside will shorten the bank, while if the cue ball will not cross the banked ball's path, outside will lengthen the bank. That part should have been written in terms of english transferred to the object ball and how to get the correct transferred spin.
And as I pointed out in a later BD article, it is not speed alone that makes a ball bank shorter, but rather lack of follow. In fact on some tables, hitting a banked ball harder makes it bank longer. Many people don't believe this.
As for using side spin on banks, Eddie Taylor banks pretty well, and can twist banks with the best of them, but his advice is to avoid side spin. On the other hand, I think there are lots of situations at one pocket that require side spin on banks either for position/safe or to avoid kisses.