I am still using the same saddle valve I bought last year...still working great with very little deforming of the carto.
My Raven cartos arrived this morning, flange is a full circle, won't work in tanks like the UDCT/Artemas without trimming some flats. I have three so I dropped one into a regular tank and I have to say I am impressed running it on a 3.7 mech mod. At 4 volts on the ProVari it is hitting a sweet spot, great vapor and flavor.
No gurgling, seems to be feeding very well. It is an XL which means it is too long for the BB tank. There is also a plastic sleeve inside that looks like it may be short enough not to cause a problem cutting back the outer steel tube but it may be close. I will cut one back tonite and see how it goes.