Don't buy. Have yet been able to transfer anything with this. Can't imagine low tack. Probably High tack might work but medium definitely does not.
The 30 ft size is perfect for me and I hope more colors start coming in 20-30 ft rolls! I buy in bulk so it saves a lot of space for me to only have one 30ft roll instead of three 10 ft rolls. I'm also super happy with the quality of this vinyl, I really like having the clear protective sheet on it until I'm ready to cut the vinyl so that is a must as well.