Hi,
Thank you for all your input. Your comments makes me think it might be better to use one template on the whole site. To be honest the fact is that I implemented Helix Ultimate in a specific portion of the site to test it before rolling it on the entirety of ther site. On one side it is an awesome template. However there were some issues with the logo portion. When I tried to have a different logo on a different style on a Helix Ultimate template, it did not show the logo I was requesting, and is a logo that displayed correctly in the Helix3 version.
So now that I have the version of Helix Ultimate that does not clash with the Helix3 one, I will try once again to create all styles within the site in Helix Ultimate. If that goes well I will be able to then uninstall Helix3 and upgrade Ultimate to the latest version, looking towards a future, more stable Joomla 4 implementation so I can upgrade.
Thank you all once again. If you have any further suggestion please do not hesitate to let me know.
Rgds,
Rodney