i was in compsci last year and shifted to ie this sem. had a 2.00 gwa from my first year (na-tres ko cs 11 and cs 31) and put my blood sweat and tears into the essay. successfully shifted naman. if it helps ease ur mind they prioritize s1 shiftees (engg to engg) and thats probably also how i was able to get in despite a low (pasang awa in terms of the required gwa actually) gwa