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Assuming your question relates to safety: any eyepiece is safe to use, Frank. The scope itself gives you 100% protection against UV and IR (heat) through various blocking filters inside.
In general, you'll likely find that simpler design eyepieces such as plossls and orthoscopics will give a little bit more contrast when viewing the sun, than complex, highly-corrected, wide fields such as Naglers. Zooms can work very well too though, because of the flexibility they afford - the sun's appearance changes constantly and details of features can even change over the course of an observation session.
Congrats on the new scope, too. Your timing is perfect, as the sun is becoming increasingly active after a prolonged quiet spell that finally ended early last year. Lately we are getting a great variety of solar events to observe and that will only get better as it progresses towards the peak for the present sunspot cycle in a few years time. There's also an eclipse due later this year that's visible on the East coast, just to put the icing on the cake!
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