I didn't find I gained that much lift from a 4 blade. Depending on the efficiency of your existing prop, you may get lower slip with a either a 4 blade of a large surface area 3 blade but I suspect you will be better served with either the permatrim or tabs. You would need to calculate your prop slip ant talk to someone to try to ascertain whether it is prop slip that is your issue or simply weight distribution and not enough ponies. I run a set of trim tabs and a permatrim on my rig to give transom lift at slow speeds. I haven't used the nauticus system but being "fixed" apart from initial adjustment doesn't really appeal personally. I have run various foils on my alloy boats without issue and if after a cost effective option, that is the way I would go. If you are after the best option - a set of proper trim tabs though a bit pricey is bloody hard to beat as well as having benefits over the other options.