I don't know much about BG1 Tutu. I don't mean to criticize the mod, but the idea of playing BG1 with BG2-style characters does not appeal to me. After playing both games several times, I have reached the conclusion that they are totally different games. Atmosphere, difficulty, storyline, dialogue (the style as well as the substance), tactics...there are just too many differences. Would a Kensai even work in BG1? I don't see how you could play a Fighter without any armor in BG1 even if you had a +2 Armor Class bonus. BG1 just wasn't made for fighters without armor who can't use arrows. In theory, I like the idea of continuity--the idea that my BG2 character really did start out in Candlekeep as a 1st level character. But in practice, it doesn't really work for me.
I suppose you could play a Fighter dualled to a Druid in BG1/TotSC, but due to the way that BG1 is calibrated (experience cap, difficulty, expected levels at each encounter, etc.), I'm not sure a BG2-style character (e.g., 9th level Fighter dualled to a Druid) would play well. You could certainly do it, but I'd have to try it before I could say whether I liked it.
Let's look at experience. The total amount of shared experience a party can earn in BG1/TotSC is roughly 1.2 million points (your mileage may vary). Each member of a 6-member party can reach about 200,000 experience points, give or take. Each member of a two-member party can reach about 600,000 experience points. It seems to be pretty linear. So each member of a 3-member party could reach about 400,000--just about enough for a 9th level Fighter dualled to a Druid to regain her Fighter abilities before the last few encounters.
So where would that put you? Let's say she has about 100,000 experience points when she finishes Chapter Five (before Durlag's Tower) and heads to Ulgoth's Beard. She'll probably be a 7th level Fighter. By the time you finish Durlag's Tower, she'll have about 200,000 more experience points--enough to reach 9th level and dual to a Druid. If she has 50,000 experience points as a Druid when you return to the main storyline, she'll be a 7th level Druid, which would be appropriate for the non-TotSC parts of the last few chapters, since the original experience cap was 89,000 points (except that you don't have a full party of six). Somewhere in the last chapter, she'll reach 10th level and regain her Fighter abilities, and she'll finish the game as a bad ass dual-class character. Was it fun for you, too?
In effect, you'd be starting BG2 with a 9th level Fighter dualled to a 10th level Druid. That's overpowered for the first chapter of BG2. The character importing utility wants to cut your character down to 161,000 experience points to keep the game balanced. Since BG1 has a 161,000 experience point cap, your 400,000 experience point character would be overpowered in BG1, as well. At least the two games have that one thing in common.
I wonder if you would be happy if you played a multi-class Fighter/Druid in BG1 and then played a Kensai dualled to a Druid in BG2? Can you still say they're the same character? I think it's worth a try.
There's a lot of inconsistency between the two games to begin with. Look at the character portraits, for instance. Look at the way the NPCs act and talk--they're practically all-new characters, with the exception of Minsc. You could start with a 7th or 8th level Kensai and work your way up to 9th level pretty quickly, and getting another 125,000 experience points to reach 10th level Druid would be pretty easy in Chapter Two. One or two characters such as Minsc and Yoshimo could do all of the work for you while you healed them if you felt like your own character was too weak. Just think of it as taking a break while your character rests and recuperates from her caged ordeal. Maybe she can't cast spells in Irenicus's dungeon because she hasn't seen a tree for so long. When she gets her spells and her fighting skills back, she'll return to her old self, only even better.
That's the way I would play it, anyway. I don't mean to discourage you from playing BG1 Tutu if that's what you want to do. I just think that BG1 Tutu stretches a lot of things to make BG1 and BG2 continuous, and maybe using your own imagination would be just as effective.
Even though I've already put a lot of thought into this, part of me wonders whether it's a mistake to do too much planning in advance. Maybe you should just jump right into it without doing any more thinking about it. Just try it and see if you like it instead of trying to plan so many things ahead of time. And then you could tell us what it was like.
