Since we moved IP1 back on the PSL table to get more separation in Gouy phase between IP1 and IP2, the ASC singsin matrices from IPs to WFSs were measured. They are still degenerate 
According to the calculation, the gouy phase separation should be ~40-50 degs, and that was the best we could do without changing the PSL layout drastically. This doesn't seem enough. PIT may be OK, but YAW IP1 won't work with this. Mmmm....
- why the sensors for YAW IP1 are so small? Is that so with given Gouy phase?
- PIT and YAW are somewhat mixed
| PIT | IP1 | IP2 |
| WFSA1 | -364 | 375 |
| WFSA2 | -275 | 819 |
| YAW | IP1 | IP2 |
| WFSA1 | -30 | 132 |
| WFSA2 | -30 | 316 |
The unit is a.u., just normalized by the actuations in cts x 1000 to look easy.