I wondered if HL was discontinuing carrying that thing....as I'd not seen them in the nearby stores in some months.
If it gets a reading, it's usually fairly good. BUT - don't put it in a compartment that you will pull even a little vacuum on opening up after the flight as that will mess up its reading. It NEVER locks in an apogee value, unlike all others currently on the market or slated to come back soon.
The Rocket Science motor set Tony posted about above is also dropped. But that still leaves a good selection of 1/2A through E motors in the most commonly used delays. The biggest omission, to my mind, is a booster motor below a C6-0, as the only two-stager in their current kit offering (Epic II, which is a twin to the Sterling Silver and is BT-20-based) will go a long way even C6-0 to A8-5 (they don't carry A8-5 either).