Thanks to all for answering. Didn't realize that the Ask The Veterans forum was a nondiscussion forum. Thought it was a forum for vets to chime in on their responses. Now understand that one Vet can reply and close the thread while the general forums can stay open a long while.
Dormouse - Thanks for the help as always. Also FYI, I have inquired from multiple vendors about their cartos. The reply I received by email on the V2's you mentioned was that their Kr808D-1 cartomizers had no notch, no inner seal and were 2.5 Ohms. I'm trying the LitCig Premium KR808D-1 cartos now - yes Boge and no inner seal, which they told me up front.
I guess the inner seal is a personal preference - but I like it and prefer it to the cartos which don't include it. However, I'm finding that blank KR808D-1 cartos no longer include it - at least I can't find any blank KR808D-1s which still have it. I understand Kanger used to include the seal, but changed to one without it, except for some prefilled cartos, which I rarely buy now.
Thanks to all again for your input. It's a learning process for sure.