The M26X will tack well if you balance the sails, as another poster mentioned. Raise the center board a bit until you can easily tack if sailing with just the main or if the wind is greater that 15-20kts.
Just remember that the Mac is very light with respect to its size (because it is a trailerable boat) so you have less momentum as you tack so waves or chop will slow the boat down quite fast. Turn smoothly but quickly and don't stall the rudders by turning too hard.
Backwinding the jib an instant (very short) will also help as will letting the main out some as you tack. Also try to tack on top of a wave. These techniques have worked well for me in 6-8 ft waves in 25-30kts of wind, just remember to reef properly and keep the boat balanced, powered up and level (no more than 15 deg of heel). You'll get easy tacks and no drama.
The boat will tack fine once you get the hang of it. An added benefit, once you are proficient at tacking the MAC you'll be able to tack anything!