With regards to NVTR, I know they are pleased with revenue growth, now increased to over 200 docs using their system in the US. I can't quote you the prior number.
It's going to be a growth story. Personally I'll never sell all my holdings. Planning to trade around a core of 1k shares. Always will hold the 1k for long term, but trading in and out of another 1k shares. My powder slotted for NVTR got larger after the $6-14 run!