Due to issues with locking & a refcav transmission which has been dropping since yesterday, I gave Jason a call & he walked me through how to touch up the alignment remotely via the picomotors.  It's pretty tough!  Have managed to make a step up from 1.77 up to about 1.86, but I've been stuck here for tens of minutes.   Will continue to peck away at this, but might have to live with what we got.