Whatever fits and works for you is what works. No harm in trying different styles on.
However, I would try to stay away from anything that will require a buddy to assist you for donning/doffing. Usually, that means a front zip will work for most people.
On the other hand, if the front zip fits poorly and shoulder zip is the only way to get a proper fit, I'd likely go with the proper fit as a priority.
There is a third thought: wait until you have the money and then get a proper, custom fit. Sucks paying out but will pay for itself in delight over the years. :07:
However, I would try to stay away from anything that will require a buddy to assist you for donning/doffing. Usually, that means a front zip will work for most people.
On the other hand, if the front zip fits poorly and shoulder zip is the only way to get a proper fit, I'd likely go with the proper fit as a priority.
There is a third thought: wait until you have the money and then get a proper, custom fit. Sucks paying out but will pay for itself in delight over the years. :07: