 नात्र शक्यं बलं ज्ञातुं तव वा तस्य वाऽधिकम्।आर्द्रं शुष्कमिति ह्येतत्सुमहद्राघवान्तर।। 
 I was unable to gauge whether your strength is more  than his Valis since there is a great difference between a dry body and a wet one. 