My dear Maharaja,
Dandavat pranams. Ram Ram.
I went through your letter again. I understand what I wrote earlier is what you are saying.
I like the verse SB 7.9.28. http://vedabase.net/sb/7/9/28/en

I have to modify the translation while reading it.
bhṛtya-sevām refers to the service of devotees of Krishna. It does not refer to serving only Narada or spiritual master.
It appears from the translation that the verse states that it is foremost duty to serve guru. The verse talks about the devotees of Krishna (not just guru).  Actually, it is our duty to serve Krishna's devotees.  Guru is included in this verse because guru is Krishna's devotee.

Like Prahlad Maharaja, we should not leave the service of His devotees. From absolute perspective, Krishna loves everyone and everyone is part of Krishna. As a general rule, we should serve and help people around us.
If I make above statement in temple's Bhagavatam class, I will be banned from the temple.
Your servant,
Gaurav

HpS - Jaya!   Hare Krsna.     We just finished the evening program.  Like 15 very nice devotees here for disussion on Japa.  Cold.  Madrid is in Winter.  I think, that if you bring up honest doubts then most devotees of ISKCON are going to respect your challenges.  Of course, there are fanatic EVERYWHERE.   My only effort was to show how Srila Prabhupada translates and takes the verse.  He quotes it very purposefully in the song he wrote when he came to the USA.
There are places where he makes translations that differnet groups would feel are distortions.   I can't explain all these things. I have a very specific service, but my conviction is based on dealing with ideas like you are presenting, as well as 35 years of practicing the ideas. Also, of course I come from a Christian, Episcopalian, tradition which has a certain idea about Guru, Christ, also.
So, following the previous conclusions, all I can suggest is that if you find value in Srila Prabhupada, you continue to associate with him, and if you have honest doubts about his statements, then keep them. Continue reading.  Read the whole Caitanya caritamta, and that is the best way I kow of to consider these philosophical points in depth.
As far as I understand, it is not only that there is right and wrong, Vaisnava and non-Vaisnava, ideas. Even with Nimbarka Swami himself, Lord Caitanya was discussing these ideas of Guru, Radha, Rama and Krsna in contrast, etc.    So, there is much to understand, and I can only suggest that for the most part you just do something like read the whole Caitanya caritamrta step by step, and then you can see the Acharya.  You can make your first decision if he is actually presenting the ideas of the previous Acharyas as they would want or not.
Hare Krsna!    Jaya!      8.54PM

Little more letters then I will read the Krsna book!!!