Awhile back i encountered some illz called blue loves..
they had a a heart on them with another heart in the middle..
unfortunatly that was b4 my ez-tester days.
but if i had to bet on them id say speed.
If ur buying in bulk say 100 an easy identifier is the price.. anything under 25 is almost always speed bombs... and if u can get mdma illz under 25 in bulk then ud be high up on the food chain and not having to write the above message anyhow