Answers (as I experience from my S9)
(1) Yes the newest firmwares are a LOT better than the green tint FW. Clock and timers that work** (Although I notice the time must be reset every couple of days - I have 2 programs being recorded daily) I' ram DEEP_C2DS2_CMT_1112130641.abs with very few 'glitches'
Info screen reads C2HS2-11-12-13-048:CMT. It's the "DEEP" fw available in the downloads section.
Presently running C2HS2-12-06-18:05E3CMT (Think it's the latest from
www.wydvb.comThis FW seems the same as the "DEEP" FW. except it's 'branded' Openbox @ bootscreen. I can see no differences in it's operation from the previous FW.
(2) Think the only thing that may happen is if H is selected by the slave, you'll get 'no signal' on the master if V polarity is selected.
(3) You'll have to see. I've never hooked up more than one slave.
Might be advantageous to incorporate dual output LNBF's and a multiswitch. Enhanced flexibility. Doesn't have the limitation outlined in (2) but motor control would only available from one receiver.(unless there's, an unknown to me, way)
** also, no more .dvr files that require conversion. Can record TS (mpeg2 and h264 streams) or PS (mpeg streams only. records as an mpeg file) both playable with VLC and other media players. Record 4.2.2 streams for playback on computer and VLC.