Had this same choice to make a month ago and the wife told me to get the bigger one so she never has to hear me mention the word upgrade. I picked up a 3/4" 3-4 tpi blade to go with it. I tensioned till I didn’t see blade flutter, put the guide bearings against the blade just behind the gullet and gave each side of the blade a light flick with the finger before tightening the bearings. Gave the blade a light push back before tighten the rear guide pulleys. I’ve since sawn 8" mahogany with no curve in the cut front to back or top to bottom. Also sliced some 5" purpleheart and 6" beech. Don’t know if keeping it 240v helps or not but it doesn’t complain, cuts straight and seems reasonably fast to me.