Hey Eric,
I'm not sure why you want to use that powder but here goes.
From their website:
This data is for a 38spl. +P
158 GR. HDY XTP Hodgdon Titegroup .357" 1.455" 4.3 905 19,300 CUP
If it were me, and you do what you want, I would reduce this load by 10% and shoot it over the chronograph and see where I was velocity wise.
Don't load many, it may not be what you are looking for. Move it up, move it down (not too much in that direction though
)and see how it looks on the target and chronograph.
There is no reason you can't use TiteGroup for this load. There are MANY better powders out there for +P 38 loads though. TiteGroup is too fast in my opinion for +P loadings.
Now that you have my opinion, you can take it and $5 to Starbucks and buy a cup of coffee.
No need to thank me, I'd do it for anyone!