Hey Apoc,
The problem you are describing is definately not normal and isnt occuring on the backbone itself; it would appear to occur between the tower and your premises.
Do me a favour and send me an email ( noc at aerosat dot net ) and I'll get you sorted out asap. There are a few sites up around the area you described, so realigning shouldnt be a problem...
While I'm on the topic, I'll address some of the issues brought up as well:
1) Service dips experienced
Sounds related to last mile distribution if you ask me. From the backbone side of things, none of these "dips" have been recorded, other than physical link outages at times

We run node reports and monitor all traffic and latency on our backbone 24/7... it is by this that we proactively work to keep latency on our backbone to a minimum. Obviously at distribution level, every client is different and we do what we can to mitigate interferance and provide a decent service to our customers. If anyone is experiencing these "dips", please contact me so that we can resolve the issue...
2) Certain Websites Cannot Be Accessed due to Proxies
Yup, that is a problem admittedly.
I have had a lot of queries about Rapidshare and have looked into it extensively; the fact is that rapid share (unless you are on a payed account) will not allow more than 1 concurrent connection from the same IP address per server. This problem is also experienced by a few other ISPs over the world as I have discovered during my research into the matter... So to solve the problem, go premium!
3) 24/7 Call Centre
For our home user base, a 24/7 call centre is somewhat available, in terms of an after hours cell phone. This isnt obviously the best method of "after hours support" admittedly yet does give the client someone to talk to. Our operations guys are in the process of employing a few more level 1 support engineers, after which time shifts will be implemented with at least 1 level 2 technician on at all times, day and night. This should come into effect shortly, however not being my department, I unfortunately cannot give you an exact time... Any severe problems will be escalated by these after hours people to the rest of the standby engineers...
Regarding our Pencil sharpening and advertising strategies - to tell the truth, we're extremely busy every day with new customers. Simply put, we have managed to sustain quite a substancial growth based on word of mouth and client reviews of our service. That having been said, look forward this year to far more exciting Aerosat products and services as well as a few advertising campaigns. I know we own a few large advertising boards which have yet to be put up, but yea... all in good time
Ryan