The larger ones should be in multiples of 16 feet and textures should tile in 16 foot sizes. Having larger panels will reduce lag because we use less objects. For me it would be ok if they cost more. reducing lag is what the key is.
great idea.. i think i have gone through thousands of the 16x16... lol this would reduce lag at locations with the use of less items in building!!.. and 1 tile would replace 4 of the 16x16's.. awsome!!