While attempting to lock H1 this afternoon, occasionally I would notice the ALS-X transmission get a bit noisy, then it would drop out entirely and there would be a lockloss. On a couple of the more recent instances of this, there was also an MC2 saturation callout right before the lockloss, leading me to believe the IMC was having trouble staying locked. The RefCav alignment has been dropping over the past several days (likely due to the change in weather) and has needed an adjustment, so, thinking that might help the IMC, I paused between lock attempts to touch up the RefCav alignment using the picomotor mirrors in the FSS path. I was only able to improve the signal on the TPD from about 630mV to 740mV in the few minutes I spent, but I was about at the limit of improvement I think I could get. I'm not sure if this helped at all as H1 still has yet to relock, but I figure this is still an improvement.