I have them all XL, Reg, Short, autos and manuals they all work well and I enjoy each for different reasons. If you fill your own cartos, go with manuals and avoid shorting out an auto batt. Outside of that, there is NO better one over the other....it's just comes down to personal preference. Get a couple of each and I think you will see what I mean, I believe they are all 25% off until midnight.