Is it loosen 4 nuts and slide off or completely take nuts off and add back?
If you look at the picture I posted of my boat with the Xi5, you will see the 1/4" Nylon locking nut (4 - one on each corner) which you remove and can take half of the LiftSaver off with the trolling motor to be able to secure. Takes me less than a couple of minutes to take my motor off. Please understand that this is with the LiftSaver Plus (with the Quick Detach option). The LiftSaver Basic is designed to be permanently mounted to the bow (you can still remove the TM by removing the TM from the LiftSaver without going back under the bow in case you need to service the unit).
I've had a lot of guys tell me that the lever lock or slide units start getting a lot of play in them after a while and then they get real loose and rattle around. There is a testimonial on my website that addresses this exact issue. Check it out at www.liftsavertmmount.com