Think adjusting for OS spinners in Asia on their first tour is very similar to how Asian pacers adjust outside Asia. Mostly, the first tour is a struggle regardless of quality because they are not able to judge the right kind of line & length to bowl. Sharing the numbers for Lyon https://twitter.com/hganjoo153/status/1349735170350333962

Swann & Panesar to add some weight to what I want to say.

Swann avged 39.5 & took 8 wkts at a SR of 75.3 in his first tour to Ind (& Asia) (08-09). In 2012, he avged 24.75 & took 20 wkts at . Massive improvement which was also due to one tour each in BAN, UAE & SL.

Panesar took 5 wkts from 6 inns at an avg of 62.4 & SR of 141 in his first tour to IND (2006). In 2008/09, he avged 50.5 & took a wkt every 101 deliveries for his 6 wkts. Those numbers came down to 26.82 (avg) & 64.5 (SR) with him taking 17 wkts. Again, constant improvement.

Lyon avged 37.33 & took wkts every 50 balls in his first tour to IND. Good SR, but IND attacking him had a part in it, which his ER of 4.4 is a good indicator of. In 2017, he avged 25.26 with a SR of 52.5 & had an ER of 2.88. Similarly, his numbers improved in SL & UAE as well.

The larger point here is, I feel, most bowlers, regardless of how much experience that they have before, are likely to struggle in their first OS tour(s). It certainly happens with OS spinners who come to SC, and it has happened with Ashwin as well. And it has happened to Indian

pacers like Zaheer as well who have improved. But the likes of Irfan & Sreesanth were special because they did well in their first tours (Aus & SA) respectively. https://twitter.com/gurkiratsgill/status/1340560309560385538?s=19