fuel logs

Maybe a personal or secret matter but wondering what fuel logs most people are using nowadays? I used to mainly see leahy return logs with the adjusters but have been noticing quite a few other brands becoming popular?
Thanks

 

I think 90% off the teams are using leahy systems because they work simple and quick to change your setting in the line up with out using a laptop.

 

Just noticed a few dmpe 3-4 pole fuel logs and few other versions appearing more often and wondered if there was a shift towards away from the leahy logs?