Microlet Lancing Device + 100 Active Forward 30g Lancets

I liked the BD 33 gauge lancets now unavailable. What is a good replacement for them?.

Can this be use with flat type lancet?

Can I use my 28G lancets in this product. I have several boxes of those.

I have the microlet next lancing device, what is the correct length for the lancet? The regular ones appear too short. Thank you for the help.