No, your tip about to wait for the vaporizer heat-up before to load wax/hasch is true dope, I can't believe I didn't thought myself about it .how did it work out your test with concentrates and hash with starry 4, did you find a better way?
For info that tip is for the wax pad, the Xmax Starry 4 isn't coming with the wax pad in the box but you can get it under the Xmax Accessories section of your favourite retailer.
When using the "Sandwich Tek" no need to preheat but only use it like intended for flowers.
I was thinking to offer another future accessorie for concentrates vaping with the Xmax Starry 4... Why not an ovale quartz cup wouldn't be able to vaporize efficiently a dab at +430°F (max T° is 464°F) ...? For sure it will be not a dab-like experience but it may be able to deliver decently sized tasty clouds, isn't it? The idea came from your smart suggestion @seedy53 but we need the Engineers approbation (and the Executive Staff approbation as well) before to think about to add that item to our catalog. Let me know your thoughts, if the Starry 4 wasn't able to deliver such high T° I wouldn't emit that suggestion.