push rod tubes

Hi guys
would like some advise am thinking of changing leaking push rod tubes with out removing heads. Which are better the spring loaded push rod tubes or the adjustable ones. Blue spring loaded or gold spring loaded .

People seem to recommend the Gold Scat ones

http://forums.aussieveedubbers.com/viewtopic.php?tid=109109&page=1#pid1013928

I believe these are the ones

http://scatvw.com/master/push_rod_tubes/

Jaycee pushrod tubes are the ones I use.
Never leaked under hard race conditions.

Cheers Col