Configuring Unicorn & Sidekiq correctly on Heroku

I was getting ActiveRecord::StatementInvalid (PG::Error: SSL error: decryption failed or bad record mac errors so I followed this guide about deploying Unicorn to Heroku and it seems to have fixed it. However under caveats it shows how to configure Resque for such a setup - would I have to do something similar with Sidekiq?

Sample code from Heroku:

before_fork do |server, worker|

  ...

  # If you are using Redis but not Resque, change this
  if defined?(Resque)
    Resque.redis.quit
    Rails.logger.info('Disconnected from Redis')
  end
end

after_fork do |server, worker|

  ...

  # If you are using Redis but not Resque, change this
  if defined?(Resque)
    Resque.redis = ENV['REDIS_URI']
    Rails.logger.info('Connected to Redis')
  end
end

This is what I currently have set up:

config/unicorn.rb

worker_processes 2
timeout 30
preload_app true

before_fork do |server, worker|
  Signal.trap 'TERM' do
    puts 'Unicorn master intercepting TERM and sending myself QUIT instead'
    Process.kill 'QUIT', Process.pid
  end
  defined?(ActiveRecord::Base) and ActiveRecord::Base.connection.disconnect!
end  

after_fork do |server, worker|
  Signal.trap 'TERM' do
    puts 'Unicorn worker intercepting TERM and doing nothing. Wait for master to send QUIT'
  end
  defined?(ActiveRecord::Base) and ActiveRecord::Base.establish_connection
end

config/initializers/sidekiq.rb

require 'sidekiq'

Sidekiq.configure_client do |config|
  config.redis = { :size => 1 }
end

Sidekiq.configure_server do |config|
  config.redis = { :size => 6 }
end

Procfile

web: bundle exec unicorn -p $PORT -E $RACK_ENV -c ./config/unicorn.rb
worker: bundle ex