The speed is important to not keeping the lid open very long so your fire doesn't flare up as much while you are checking temps.
The small tip creates a much smaller hole from which juices can escape.
Cost more than it really should, but worth more than it costs.
Jim - Another transplanted Texan
Former KCBS CBJ
Large and Medium Big Green Eggs , Black 18.5" WSM, Blue Weber Performer - Stainless, Green Weber OTG Kettle , Brinkmann SnP Pro, and a Stainless UDS. One retired Portable Kitchen grill.
Red Thermapen, Maverick ET-732, EdgePro Apex Sharpener.
Avatar is the original 1951 Weber Kettle