Every builder does things a little different, doesn't necissarily make one right or one wrong. The intakes are the least crucial of the ports to modify in a banshee cylinder, you will notice very little difference between a set with no intake work and a set with a lot of intake work if all the other ports were the same. The exhaust and transfers are 90% of how the port will perform. As long as the builder got the numbers right, kept good symetry in the tranfers heights/angles, stayed within useable limits on exhaust width/roof radius and properly chamfered the ports it should perform well. It is fairly easy to make big power with banshee cylinders if you get your timing/angles right, the trick is being able to make big power over a broad power curve. If you rode it and you're satisfied that is all that matters.