Steve Rowe said:
No stacks in the drawers. Put a SYS1 in the SYSPORT with all latches installed. Now try opening the drawer and opening the SYS1. You will immediately see several problems. The first is that you cannot unlatch the rear latches on a SYS1 due to interference with drawer sides. This means to open the SYS1, you would have to remove it from the drawer. Second, if you desire to leave the latch installed but keep the lid unlatched on the side, the latch does not slide down far enough so you have to latch it. I remove the rear latches from SYS1 to avoid this problem. This causes an inconvenience because if you want to remove it to take it to the jobsite, now you don't have rear latches. So go find them and install so now you can stack systainers.
The Systainer system is really well thought out but, in the case of the SYS1 and SYSPORT, it falls short. The new T-LOC seems to resolve that issue.
I have four Systainer Ports, and have several Systainer I's stored in the drawers. I find the only thing true in your statement above is that the Systainer Port's drawer slides will prevent one from opening the rear latches of a Systainer I while in the drawer. But, there is absolutely no reason one would need to open those rear latches. The Systainer lids do not have tabs that engage with the rear latches, and therefor those rear latches do not prevent one from opening their Systainer. On my Systainer Ports, there IS room to leave those rear latches of a Systainer I in their lowest position and there is NO interference with the drawer. I have never needed to remove a rear latch from a Systainer. This is simply a non-issue in my experience and I fail to see where you are correct -- you must be doing something wrong.
On Edit: If you leave your rear latches in their up position, then they will prevent you from opening the lid of your Systainer. But, the latches should be returned to their lower positions when not latched to a Systainer stacked above. There is nothing about the drawer slide in a Systainer Port that will prevent these rear latches from being in their lower position.