Default [Q] Emoticon Issue (Unicode vs GSM Alphabet)

Since upgrading to Kitkat (4.4.2), the HTC One default text messaging app switched from GSM to the Unicode alphabet. Is there any way to switch it back to the GSM alphabet for emoticon support? I'm running stock Android 4.4.2 with HTC Sense 6.0.

When using emoticons in the Unicode format, the max character limit per message changes from 160 to 70 characters. I'd rather just use the old emoticon support and get the max 160 characters per text message.