Spintastics has gone through several versions of the Blizzard (which replaced their first bearing top, the Tornado). They have different strengths and also different problems. I have always liked Spintastics fixed-tip tops but I was never too much of a fan of the bearings. I used YYJ bearing tops for a long time, until the lack of production force me to change to the Trompo Grande Bearing, which is not bad (I did use it on freestyles) but neither great (still preferred it to BKs). Of course, once the YYF and specially the Strummol8 tops appeared, I only used those for bearing. However, yesterday I go this message from Dale:
Just thought I'd let you know that I've finally put an inside bearing well in the Blizzard. Now it's a lot more stable.
Those are good news. I guess I'll try one in Prague. Dale tells me that the Blizzards on the site are already the new version.