Misc Unsigned Bands - Underdog - Back To Back Chords & Tabs

Heyy
This is my first tab i have done so its not great, this song has no
other tabs so i thought i'd contribute my version, althought its 
only one small riff in the song. I would much appreciate help 
and contrbutions. Contact me at fail_to_reason@yahoo.com  
Thanks in advance.

e|----------------10--101010---7777-----------------------|
B|--7777---9-10---12--121212---9999--10-9---7--777--------|
G|--9999---11-12---------------------12-11--9--999--------|
D|--------------------------------------------------------|
A|--------------------------------------------------------|
E|--------------------------------------------------------|
[ Tab from: https://www.guitartabs.cc/tabs/m/misc_unsigned_bands/underdog_back_to_back_tab.html ]
e|----------------10--101010---7777-----------------------|
B|--7777---9-10---12--121212---9999--10-9---7—-8--7-8--7--|
G|--9999---11-12---------------------12-11--9--10-9-10-9--|
D|--------------------------------------------------------|
A|--------------------------------------------------------|
E|--------------------------------------------------------|

e|----------------------10--101010---7777-----------------|
B|-8—-7-777-7777-9-10---12--121212---9999--10-9---7—777---|
G|-10-9-999-9999-11-12---------------------12-11--9—999---|
D|--------------------------------------------------------|
A|--------------------------------------------------------|
E|--------------------------------------------------------|