Finn has shared game time with Scotland internationalists Duncan Weir and Ruaridh Jackson and the young stand-off's accuracy with the boot was a key factor in Glasgow's PRO12 semi-final victory over Munster last week.
He's signed a two-year pro contract with Glasgow and has also been picked for the Scotland squad for the summer games against USA and Canada.
Now Glasgow skipper Alastair Kellock has likened Finn's kicking talents to that of Dan Parks, the former Glasgow playmaker and PRO12 record points scorer.
Al told the Evening Times: "He has shown a fantastic ability to keep the scoreboard ticking over for us in big games, just like Parksy used to do back at Firhill. But there is so much more to Finn's game. For a young player he has tremendous maturity.
"Even as club captain and a senior pro I can ask him questions in the heat of battle and he gives an intelligent answer. When you consider he was turning out for Ayr a couple of months back, the way he has made the transition to the professional game has been almost seamless.
"His performance against Munster in the semi-final was very self-assured and he made four very important kicks for us at crucial stages, and it did remind me a bit of Parksy."
The Warriors' skipper said for all Warriors' No.10s it is a big help to have head coach Gregor Townsend working with them.
"When you look back at what he achieved with Scotland, the British Lions and clubs like Northampton, then for young Finn, Duncy Weir and Ruaridh Jackson to have that type of experience on hand is a huge plus."
Looking ahead to next weekend's PRO12 Final, Al said: "It has been a fantastic journey and we are not finished by any manner of means.
"But I think to make the final by beating Munster in the manner we did was unbelievable and it has given us so much belief.
"We have been close against Leinster a couple of times in play-off semis at the RDS, and particularly last season we almost did it. All that experience will be put to good use in seven days' time. The one thing I can guarantee Leinster is that this Glasgow side will leave the pitch with nothing more left to give.
"We want this title and we want to make history so much."