I have done plenty of theese since there was a time when my sightreading skills where zero so I put all the transcriptions into powertab in order to be able to read them so I had lots of practice so I can do them pretty quick. I have plenty of sparetime aswell since the school I goto goes hand in hand with my hobbies I practially just sit at home creating and learning music and get school points for it.
I mostly just type them in first and add timing and such afterwards, I think that solos are ok as long as they doesn't have lots of pauses and interuptions, time signature changes and such. Just typing in alot of numbers goes pretty fast, its the interruptions that slows me down.