By no means am I a season veteran, but I ordered a mech and got some cheap protected ICRs. Hindsight being 20/20, I should have started with the AW IMRs, that is what I have since bought. Now, regardless of if I pick up a mech or a vv device, I can drop the AWs in and know it's a good and safe choice. If you pick up a mech later, you'll want the IMRs, buy them now and you'll have saved a few bucks later.