Does size matter? In my opinion, I think it does especially when it comes to knives. There are many great blades on the market. Not one is really the same as another unless it is the same knife from the same company. If it is a custom knife, even that knife may differ slightly from the others. What do you plant on doing with the knife in the first place? Are you planning to do a lot of carving, chopping, or splitting? In my experience, I have used many blades of many different designs and thicknesses. For many things I do I like to have a heavy thick blade that is full tang. I have also been asked, “Why is that” on several occasions. The reason is I want something I can be a little careless with if I have to be. I also do not what the added weight that carrying an axe or saw adds while I am in the field. If I come across a downed tree that will offer a few things I want to be able to take full advantage of this while I can. For example, I can either build a shelter with the downed tree if the location is safe and inviting. I can also pry off the bark to make sheeting or shingles for a shelter. I can also get under the bark to look for edible treats like larva and other things. This same idea can translate over to bait for fish or traps. There is no way in hell I would try to do these things with a thin blade knife like a Mora or other blade.
The thickness of the blade does have an effect on your work as well. I have in the past and still do carry a secondary blade as a backup to the primary. It is usually a Mora or other small blade. One standing argument is that a thinner blade can carve better than a thick a blade. Sure, depending on the overall geometry of the knife; if the edge is not taken down to a very thin profile this can affect the workability and performance. Many of these blades are not in my opinion made for these tasks. I see them being used more for chopping and tactical uses. However, they still have their place depending on what it is you are using the knife for in the first place. I like to carry two blades simply because the smaller is light weight and does not add much if any extra weight and it will save the edge on my primary blade, they both work together
One of the blades I have designed, the Apache Bolo; may feel too heavy for some and it may even be too thick for doing many tasks. Personally, I designed it that way because while I am in the field I like to use a solid work base to chop and do other things. I also find that the edge being the way it is and the weight to boot lends itself to great control while carving. I also took into account that being safe while carving is very important. By placing the piece being worked on the solid work surface the Apache Bolo shaves the wood very effectively. I find that this package is very usable for someone like me and I have no issues with the weight and thickness of the blade.
When using other blades I have chosen like the High Desert Survival Knife and the Saguaro Survival knife, I find that they are very well suited for me. I find them to be very comfortable while in use and carving is very easy for me. The slightly thicker edge of the High Desert makes it a great chopper when this is needed in the field. Most say to carry an axe, I don’t; as I started before I do not want the added weight. I also do not want the added bulk that comes with the extra tools as well. I will use an axe and saw but that is while I am camping with my family. I see this as chance to break away from “survival and bushcraft” and relax by taking the escape and spending time with my family.
The Saguaro Survival Knife is however my greatest achievement to date. I find that the design is flawless in my personal opinion. I can use this blade for a huge range of tasks and so far it has held up to each and every one of those. Some have told me they do not like the polished micarta scales. I do have a black coated version with rough scales available. In addition, the second lanyard hole is there to keep the knife from slipping out of hand while in use. I have yet to have this happen.
Each blade is different and there is no need to look at knives in such a small window. Find out what the intended use of the blade is and make your choice from there. I would not want to have a blade with a hollow or Scandinavian grind on a chopper; they are weak grinds for this purpose. I personally prefer a convex for chopping but not for carving. I like to meet in the middle somewhat and use a saber. Some say it is the same grind as a scandi however there are a few minor differences. The saber grind in my opinion leaves the edge thicker so adding a secondary bevel for sharpening is imperative. This simple difference is what makes this my preferred grind when it comes to a blade that I can use for a variety of tasks. The blade thickness at this point matters depending on what you do with your knife. Just my two cents!