I would recommend using only a rope to tie the blake's hitch. I use the VT and if you are comfortable and practiced "low and slow" I see no problems, every hitch behaves differently. I still at times (if need to double crotch or move to another tree), will take the end of my climbing line and take a long tail (2-3 feet) and tie an anchor hitch on my bridge and blake's hitch. No extra biners or hitch cord needed. My number one piece of advice is learn to walk away, no shame in safety.
I disagree. There are three sides of the gaff to sharpen, and NEVER (thanks, Jerry!) file the spine. Another never - never use a grinder!!! CL is most correct on that point.
Keep your spurs sharp!!!
I've started taking advantage of that also, very handy when you need that third system to make the work safer/easier/faster.
I agree on the loop runners, they're invaluable, I don't climb without 'em(and at least one extra 'biner).