Welcome to the Strelets Forum. Please feel free to discuss any aspect of 1/72 scale plastic figures, not simply Strelets. If you have any questions about our products then we will answer them here.
Yes, I mix and match figures/horses all the time. As you know, some of the easiest conversions require nothing more than switching horses and a little paint.
I don't like that Italeri figures are giants compared to, lets say, my other Napoleonic or AWI figures. But I have managed to mix them in quite nicely with those from Marx, Marksmen, Spencer Smith, Kinder Surprise and others.
I've come to accept that to have a perfect collection of 100% historically accurate figures, all in the exact same size, covering every aspect of every period I am interested in.....will never happen. But there are a lot of figures that are close, paint covers a lot in 1/72 scale, and I read the forum for all sorts of clever tips and tricks. How else would I have found use for Imex Alamo Mexicans. As I have promised to be positive in 2009, I have learned to live with "close enough" while encouraging manufacturers to get it right.
I also agree that there should be a standard defining how big 1/72 should be. In the meantime, I have tall figures, short figures, fat figures...kind of like real people.
For true giants, the 28MM Perry and Victrix figures are off the scale. I know they are meant to supplement metal figures, but I only collect plastic. The only figures I have that come close to these are some of the Marx figures, and the Connoisseur line of Spencer Smith AWI / Napoleonics, which are about 30MM.