I'm using LR510's on my OldGoat 3.7v bottom feeder and never have any problems. As the juice level in the bottle goes down, I of course do have to squeeze harder/more but it still works just fine for me.
The 801's work great with my Vapemate though Raider, no leaks!
mgmrick, do you have a link for the oldgoat?
Sorry for the misspelling guy's yes the pyrex are the ones from theecig.com I believe it is. I too just ordered the 801 adapter for my VapeMate which I really love to use on my Provari with a Reg Ohm Atty, but now using one of Issac's Mini 2 ohm 801's finally with the correct fitting adapter instead of my home made one is really gonna Rock 04 Raider please PM me when you get yours and let me know how it is, I'm thinking its going to be one helluva Vape. All these new products keep coming out but dripping to me is still the best feed system out, and the VM makes it very easy to do and one of these new Tips on the Vapemate is working very well
mwa102464, I have an Ikenvape 801 mini and a Vapemate 801 adapter. The vapor production & flavor are great, draw is still really stiff but I just got it so it may need a few more days of breaking in.