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Sorry but I have to say that your 'Loop-hold' in it's current form simply wrong. I don't want say anything about the playing characteristics without a probe, but according to the first picture you should press the racket all the time with your forefinger and that make impossible to make hard shoots consistently and train hard, because you get hand cramp. Firstly you should change the grip to one, which allow you to hold the blade with opened forefinger. This wants to be a constructive reply and not offensive. Go, we need for diversity!
Do You mean like having the same (opened forefinger) problems that you get with Shake-Hold and Pen-Hold where the Ball strikes the finger resulting in a lost Point or more