Stronglight and TA should make middle 36 tooth, 110mm BCD rings.

With a setup like yours (24/36/52), I doubt that the rings are optimized to function together, and so the timing is not necessarily optimized when you have all of the marks on the chainrings aligned. The timing is important to allow the chain to be engaged on the two chainrings at the same time during the middle of the shift. I would therefore try rotating the inner ring one step at a time to see if any of the other 4 positions provide better shifting than what you currently have.

I've not seen a 105 triple crank with 110/74 BCDs, and I'm quite obsessive about my road triple cranks. I think you may either have the BCD and middle ring size wrong (because 105 triples, even the old 1057 model, had a 130 mm outer BCD that can only take down to a 38 tooth) or the crank model wrong. You should double-check this before ordering any new chainrings.