2 phone calls, 5 cancellations, 1 larger dish
Well the short answer is the larger 76cm (30") dish has dramatically improved my rain fade problems.
I called Voom back in June to complain that the lightest rain and sometimes heavy cloud cover would cause me to loose my sat signal. So the Voom rep ordered a larger dish for me. Well, i waited for installs to contact me with a install date and a week went by and nothing, so I called Voom and they show the phone call but nothing else. I then had to go through my complaint again and was told they aren't offering the larger dish, blah blah blah... had her talk to supervisor and new dish was ordered.
Installs notified me of the install date and 5 cancellations later they finally put up my larger dish (about 8 week process). Not really a big deal, the people at installs were all very nice and in the end did a great job.
Now it can rain rather hard and I have very little interruption of service. I used to be with Directv and it would take a downpour to interrupt my service but i guess with the location of the voom dish and subsequent sat aim the 18" voom dish just couldn't handle anything. By the way, with 18" dish my voom signal strength was 91+ after larger dish install 98+. Never could get anything stronger than 93 with the original voom dish.