Supersports600 (Yass) is a great guy to deal with. I live near him so he let’s me pickup from his place and have a good old chat and he does good prices.
Wish I saw this sooner, just bought some 20mm square ones from Ebay. Bit cheaper, but like you said will require some filing to fit. Picked up 5 of the 0.5, 0.8, 1.0 and 1.2mm so I can do some work on focusing dedomes. $3.50 shipping is good, might pick up some 1mm spacers for the Yezl.
This Ebay seller seems to have 30mm for a decent enough price. I feel your pain, looked this up a while ago but I only have one 26650 that I want to take the protection off, so It was cheaper for me to buy an unprotected 26650. :~
Ohh you just missed the COTD $15 eneloops free shipping. These keep coming up and i keep thinking what I would use them for! I have a mouse and remote here and there but the cheapo bunnings batteries last me forever. Feel bad about the landfill though.
ENELOOP AA Chocolate @ COTD again. $14.98 w/ free shipping and $10 voucher. The voucher has a short period to be used so I expect their good deals won’t be happening then.