I've got a 15'4" NMZ that's had a 15 2stroke Yammi hanging on the transom since I got it. I've wanted this boat to run skinnier for awhile now and I've got to get this motor up higher to do it. Since I can't find a TomC jackplate anywhere, I'm thinking about getting a Bob's and trimming some material off and re drilling the mounting holes to reduce the set back. I really like the idea of having a little setback like Tom's design for the advantages a jackplate provides but I'm aware of the trade offs fiddling with my motor when it's further back stability-wise. I don't want my motor 4.25" back. I'd like about half that much so my idea was to remove about 1.25" of material from each half of the Bob's plate to bring the motor in closer. It won't be much, but it'll shave a little weight back there too. I've got access to a CNC mill to do the cuts, just not enough access to build my own jackplate from scratch. I'd almost settled up on just getting a riser plate but I do like the idea of being able to fine tune the perfect height I can go with the motor. This I can't do with a transom riser. I'm not adverse to installing a set of trim tabs to gain a little more lift too. I can source all the hardware to build a set for about $60. What do you think?