Words that start with 't' and contain 'sts'

What's the most popular word that starts with 't' and includes 'sts'?
The most common word for your search is 'tests'.

How many characters are in the biggest word from this list?
The largest word on this page is 'transcendentalists', and contains of 18 characters

What's the maximum number of words you're able to put together from this list?
On this list of words that start with 't' and contain 'sts', you have 47 unique entries which are possible overall.

In Scrabble, what's the most points you can get using words that start with 't' and include 'sts'?
Using this combination, one could play 'tzarists' scoring 17 points.