first ace and hi-tie bet

We all know side bets are for suckers but there are some dealers who are sloppy cutters and when sitting at first base you can take advantage of this. Supposing you are on a table with the Hi-Tie side bet and KNOWING that your first card from a fresh shoe is going to be an ace, what is the player edge on this bet. We will use an 8 deck shoe and the pay-offs on the side bet are as follows:

50-1 hi-tie
15-1 suited pair
10-1 suited bj
6-1 bj
3-1 pair

Also, some places reverse the pays on the suited pair and suited BJ

I dont think it matters but just in case, the bj house rules are:

H17
double anything
split to 4 hands
double after split