which adjustable leak jet to use

[DnB_racing]

what type of adjustable leak jet does anyone recomend which is better or are they the same. R&D is more expensive but is it better

[Ruf Racing]

It is a little pricey, but man it makes adjusting so easy and fast.

http://i532.photobucket.com/albums/ee328/RideRed187/450R%20Pics%20Parts/RDAccellatorPump.jpg

[MR4Engine202]

quick shot, r&d, boyesen...most of them work all the same

[serpent]

today i install de r&d leakjet the diference is huge accelerates like hell , no boggin , the setting is all screw-in the only way do not bog. any sugestion