dont think you want tabs wider than the VDH panel. If you ahave a bracket you may have mounting issues with tab actuators like I did, forcing me to the volvo solution for easiest path. I love the volvo tabs now, long past the fight to mount them that is. they fit under the bracket easy peasy, which otherwise at the time i would have need to drop the bracket and drill out holes to mount the tab actuators. And the volvo tabs provide a worry free zone when fighting a big fish albeit with a bracket and OB you should be out of that area anyways in the end game. and when swimming off the bracket no big tab metal hitting in the side.
the hassle with the volvo tabs is the absolutely flat mounting surface needed. the instructions say no more than 2mm out of true the horizontal and vertical surface of the tab mounting area-they mean it! or they will bind. my first mount job i used a starboard shim, sanded in spots. painful process. i also opted to thru bolt(overdrill,epoxy/cabosil, then drill). dont use 5200 either. i hit a tree about a month ago and ripped half my tab off, literally, i feel the thru bolting was better than the screw, and as well allowed me better torque consistency. and 5200 sucks to get off. you may need to repalce them at some point. again another reason for teh thru bolting IMO-i have 2 nuts on the back and can use 2 wrenches and always free the bolts up. not so much with screws, you can risk stripping them imo.
here is the advice and steps i got from elsewhere on how to mount the volvo tabs much easier process:
mount outboard farthest panel for best results, get the smaller trim tab size for a 23, mask it off with blue tape. Over the blue tape, mask with a larger piece of plain paper or larger blue tape tape overlapped.. Mask the whole tab tightly with two layers plastic like saran or other. Mix up thickened epoxy to the consistency of peanut butter. Gob onto the back of the tab enough of the epoxy to more than fill the space. Press the tab against the hull, tape it onto the hull as necessary, and clean up the excess squeeze out. Let it cure out in place. once cured, remove from the hull, separate from the tab, and sand down as necessary the profile of the epoxy wedge. Install the wedge to hull using screws or thru bolts as I did, and Less than 5200 sealant. The tab will now have a flat spot to be installed on. you kgiht want to take the time to mount and install minus the sealant first and confirm works without binding. trust me on that step
.
The double masking is necessary since the epoxy will tend to stick to the immediate surface masking that it's contacting. Don't use waxed paper on the hull masking 'cause you can't tape to it.
if you thru bolt make sure you get some good quality 316 SS bolts as the end is sitting in the water. and you mgiht want to pay attention to even torque as well
. any over torquing can bind them as well if there is even a few mm off true.