Yes - that is why many people like the 808. More heat is more hit.
You can use a plastic or delrin drip tip as a mouthpiece (the ones at LiteCigUSA.com generally fit my Vapor4Life cartos. And SmokelessImage sells their own tips - I do not know if normal drip tips fit their Volt cartos or the Bloogplanet cartos but somebody else would know.)
Also - when the battery is fresh off the charger it is 4.2v and will run the carto hotter. When a carto is new it will run hotter vs 4-5 days later after being refilled many times.
If you want something more subtle or immediate than ordering a drip tip, take a carto condom, cut a small circle out of the middle of the round end, and slip it back on the carto.
If you are using blank cartos you can try cooler ones like Boge 3.0 KR808D-1 carto. It is possible the SmokelssImage cartos may run cooler at the top than the Vapor4Life ones or vice versa.